Beautiful Day in Neighborhood, Ruined by Uppity Handicapped Guy

I feel that I need to share this good deed gone wrong.  Today, I was walking down the street enjoying the sunshine and minding my own business when a mentally disabled dude in a wheelchair selling candy asked some other kid to push him down the block.  Now, the kid looks at me (who was several paces behind him and the wheelchair M&M pusher) and says he's in a hurry, can I help?  Being a man for others, I am willing to lend a hand to the less fortunate.  I ask the Candy Man where he wants to go, and then I push him the two blocks. 

Now since the gentleman is mentally disabled, when we arrive at the destination I only ask him for 10 percent of his day's take on the M&Ms.  But the salesman of the year starts pretending he doesn't understand and trying to hand a bag of peanut M&Ms to me.  Number 1 - I know you are faking, Wee Willie Loman; and Number 2 - I don't want to get hooked on that shit. Franchise's body is a temple.  At this point passersby started looking at us, so what could I do?  I took one of his wheels and was on my way. Goes to show you - no good deed goes unpunished.