And if someone walks up with an infant we just say we don't have any infant appropriate candy and most of the time the parents are cool.
See I say Thank You for Morgan and prompt Bev to remember and she says one of the two at least.
Kids are getting stuff for FREE from strangers. If there is no appreciation for it (from someone in the family), that's a huge problem.
If we have school Wednesday (big if with this darn hurricane), I'm going to hammer home to my 8th graders how nice everyone is being to them, and how the only thing they have to do to get free candy is say "Thank you". Hopefully it sticks with a few of them.