I'm sure VAPE can't make a drug test positive. But I wouldn't give my VAPE to a friend who uses drugs, I wouldn't give my VAPE to anyone at all, because it's unhygienic. By the way, if you are in doubt about the test, you can buy such drug testing kits (you will find them on https://www.confirmbiosciences.com/products/urine-drug-test-cups/), do the test at home and find out the result. I used them when I thought my medication might show a positive result.