Shit like that happened to me at starbucks once, and I had surgery on my ankle and there was some TOOL in a Porsche who tried to cuss me out in the parking lot so when I got out of my car WITH CRUTCHES AND A CAST ON, he tucked tail and offered to buy me a coffee, which I accepted, and he kept apologizing the entire time, when I got my coffee, I turned to him and said "Karmas a bitch, thanks for the free drink"