Some even go as far as getting loans , borrowing from friends so they could trade, or invest in some altcoins..
I do condemn the act of borrowing funds to trade, because trading is all about risk and you need to take adequate measures when you're trading knowing that risk of trading is not measurable, you can lost out what you borrowed within short time you trade, for me it's better you used your earned money to trade so that when you lose it will not have much effect on you.
I agree, it's risky, to say the least, it's better yet to only use the funds you are willing to spend while trading. Your sessions should be with your money only. Otherwise, it can end badly pretty quickly.