Have you ever had a homeless person yell at you or get mad at you for not giving them money or anything?

This is one of my fears..When I drive in the city (Chicago) and I am at a red light...homeless people walk between cars up and down..They hold their sign and will stare at you and I always wondered if they have gotten mad and attacked any people that look away or role up their windows.|||once - i offered food not money. my bad.