Most disgusting thing you've ever seen someone do in a public restroom

[CollinEstes]

I haven't seen this but my wife and I work at the same law firm right now and she told me that in their restroom someone girl goes in there every day and puts all this snot and boogers all over the back of the stall door around the edge where people would put their hand to pull open the door or close it. Most of the time she says they are bloody.

Not the grossest but pretty nasty.