I saw a gas station washroom once that was just...well...you had to see it to believe it. The person who had been in there must either have been completely nuts or had a real bad grudge on other people for some reason. It was basically unusable...unless you had a skyhook and took the roof off first and did strafing run from a safe altitude.

I went and told them about it (figured it was best they knew), and drove to another station. God help whoever had to deal with it.