I used to work in a theme park, and one guy started picking up trash out of a bin and throwing it at me because I refused to let his child ride a rollercoaster. The rollercoaster had a 1.4m height restriction, and this child was about 4, maybe 5, years old. He also told me that I would die unloved and alone, and claimed that I was jealous of his perfect family.
Ahh the things we put up with for a paycheck!