I am always tempted to put up a sign that says "Little kids only" or "If you're taller than 5 feet you're too big to trick or treat." Sure way to get vandalized. I usually simply tell the big kids they're kind of big for this and they get penny candy. The bigger pieces are for the little guys. But thinking about it, it is the bigger pieces that train the little ones to want to keep trick or treating. It isn't safe to give out fruit. Maybe I need to camp out at the back of the house also. . .