I gave a homeless person a George Foreman electric grill out of the kindness of my heart..?

And he starts screaming at me about how I'm a jackass and don't care about his feelings and as I'm running afraid he has a shiv and is going to cut me the wily bastard throws my grill at me fracturing my left radial bone. WTF? I try to help a homeless person by giving him a cooking utensil and he throws it at me??