I have one of those signs because if I get post at an usually time, I can't get to it first, and my DS likes to eat plastic so those bloody charity bags lying there without me being aware are a death trap.
Everyone ignores it though.
Once I was taking DS to school and he was having a meltdown. He was trying to take his entire massive box of toys into the car to take with him. He was stood pulling it and Screaming and hitting himself while I was stood holding it, getting bashed in the knees by it while saying "DS choose one, choose one DS"
A man then came up my drive and tried to hand me a charity bag! 
I said no thanks and carried on trying to sort out my DS, he then promptly dropped to the floor having a seizure and I sat holding his head. I looked up and the man was still stood there holding the fucking bag out to me. I said "no!" And carried on looking at DS who had now come out of his seizure and was sobbing and coming in and out f consciousness.
I look up again and he pushes the bag at my hand that it holding DSs head saying "for you I'm in a rush"
I then may have told him to fuck right off. so he threw it at me.
WTF?
I've never had anyone else be that rude when I've said no. But that was just.... What?