One of my wife's favorite stories from when she was a police officer:
"My partner and I would sometimes get a pizza to share as we didn't get a scheduled break and had to eat on the go. A lot of places would give us 1/2 off or a free large pizza, which was nice. We went to Papa Johns and they gave us a large pizza for free, and we both at 2 pieces, so half of the pizza was left. We saw a homeless guy walking under a bridge by the freeway, so we pulled over and offered him the rest of the pizza.
The homeless guy asked "Oh..uh...thanks! What kind is it?"
I said "Papa John's.."
"No thanks...their sauce gives me the shits!"
For some reason, Papa John's won't put this story on their testimonials page.