This was at WDW but I wanted to post it here anyway because I just thought it was bizarre.
We were at the food court in our hotel. I went to use the restroom. There was only one sick so I waited until this girl (not sure how old...pre-teen-ish) was finished washing her hands. She didn't dry her hands and I remember thinking "great...not the handle will be all wet." As I'm washing my hands I could see the girl in the mirror by the door. Before opening the door, she starting sucking the water off each finger...one at a time. She'd stick her whole finger in her mouth, suck the water off, and then move onto the next finger. After all ten were done...she grabbed the door handle and left. Needless to say, I used a paper towel to open the door on my way out...haha.