Sound the alarm! Two UK shares I think you need to avoid at ALL costs Image source: Getty Images. See all posts by Royston Wild We don’t use cash like we used to. I don’t, I’m sure that you don’t either. There’s a whopping space in my wallet where my cash used to be kept. If I don’t use the handful of cards that I keep inside it, then I use Apple Pay on my iPhone. Everything else is too much hassle, right?Well, latest data from UK Finance seems to suggest so. It said earlier this week that just one in 10 retail transactions in Britain is made using cash nowadays. And it predicts that the country will be “virtually cashless” by the middle of the 2030s.5G is here – and shares of this ‘sleeping giant’ could be a great way for you to potentially profit!According to one leading industry firm, the 5G boom could create a global industry worth US$12.3 TRILLION out of thin air…And if you click here we’ll show you something that could be key to unlocking 5G’s full potential…Don’t bank on a comebackThis is a trend that mirrors changing consumer habits around the whole world. It’s a phenomenon that has unsurprisingly buried De La Rue (LSE: DLAR). The money printer’s share price has fallen around 85% over the past three years as cash usage has moved into terminal decline.Latest results from De La Rue don’t suggest that it’ll rise like the proverbial phoenix from the flames either. Revenues from its Currency unit tanked by almost a third year-on-year between April and September as volumes and prices of its banknotes slipped.So City analysts expect the FTSE 250 firm’s earnings to plummet again in the current fiscal year (to March 2020). A 76% bottom-line drop is currently being predicted. If proven correct it won’t be the first time annual profits have tanked in recent years. But it could be one of the last, the business saying that there is “significant doubt” over its ability to continue trading due to its high debt levels just three months ago.So forget about De La Rue’s low forward price-to-earnings (or P/E) ratio of 9.8 times. Not even these levels of cheapness are enough to tempt me to invest today.Hunting’s headachesFor bargain hunters, buying shares in Hunting (LSE: HTG) might seem a more sensible option. This is a company that also trades on a rock-bottom forward P/E ratio of around 10 times. And unlike De La Rue it also offers a dividend for the current year, one which creates a chubby 2.8% yield.In my book, though, this is another share that’s loaded with an alarming amount of risk. Freshest trading details in December underlined the huge troubles at the energy services provider as North American shale activity decelerated. It said that the pace of decline is actually accelerating and particularly so in the US onshore segment.It’s possible that the rig count will keep on falling too, what with key macroeconomic issues (like trade wars, Europe’s lurch towards recession, and Brexit) lingering on in the background. Moreover, the recent coronavirus outbreak threatens to keep oil prices under pressure as well.A 3% annual earnings drop in 2020 is currently forecast for Hunting by City analysts. I wouldn’t be surprised if its bottom-line troubles extend beyond the current year though, given the alarming shrinkage in the company’s highly-competitive marketplace. This is another share I would say is to be avoided all costs. “This Stock Could Be Like Buying Amazon in 1997” I would like to receive emails from you about product information and offers from The Fool and its business partners. Each of these emails will provide a link to unsubscribe from future emails. More information about how The Fool collects, stores, and handles personal data is available in its Privacy Statement. Click here to claim your copy now — and we’ll tell you the name of this Top US Share… free of charge! Royston Wild | Friday, 21st February, 2020 | More on: DLAR HTG Enter Your Email Address Renowned stock-picker Mark Rogers and his analyst team at The Motley Fool UK have named 6 shares that they believe UK investors should consider buying NOW.So if you’re looking for more stock ideas to try and best position your portfolio today, then it might be a good day for you. Because we’re offering a full 33% off your first year of membership to our flagship share-tipping service, backed by our ‘no quibbles’ 30-day subscription fee refund guarantee. I’m sure you’ll agree that’s quite the statement from Motley Fool Co-Founder Tom Gardner.But since our US analyst team first recommended shares in this unique tech stock back in 2016, the value has soared.What’s more, we firmly believe there’s still plenty of upside in its future. In fact, even throughout the current coronavirus crisis, its performance has been beating Wall St expectations.And right now, we’re giving you a chance to discover exactly what has got our analysts all fired up about this niche industry phenomenon, in our FREE special report, A Top US Share From The Motley Fool. Simply click below to discover how you can take advantage of this. Our 6 ‘Best Buys Now’ Shares Royston Wild has no position in any of the shares mentioned. The Motley Fool UK has no position in any of the shares mentioned. Views expressed on the companies mentioned in this article are those of the writer and therefore may differ from the official recommendations we make in our subscription services such as Share Advisor, Hidden Winners and Pro. Here at The Motley Fool we believe that considering a diverse range of insights makes us better investors.