I have a story for you now! It just happened about 5 minutes ago...
I am having a blood test today, and I'm terrified of needles, so I use this stuff called Elma which is a local anesthetic. Well after you put it on you put these patches over the top to keep the Elma in place, and I couldn't understand why they weren't sticking. Then I realised... I was sticking the wrappers to my arms instead...