Here's a new one: Someone used their foot to press the building elevator buttons There is a clear shoe print on the elevator button panel, a sneaker judging by the tread markings,. From the size of the print, I say it was an adult male. I get people don't want to use their hands to touch germy surfaces but a shoe is dirtier and germier and not as cleanable or sanitizable as hands. Use your keys or a pen or something easily cleaned to press buttons