These are the people I say are Cookoo for Cocoa Puffs. They are the ones who say that since they swam in your pool, their eye hurts, or their skin feels funny and try to ask everyone else who comes over if theirs does too. Best thing to do is put up a fence, tall fences can make for good neighbors sometimes. Or else if you don't want to be too rude, a nice border of Rose Of Sharon and just let it get tall, that way it is a slow slap in the face.

My neighbors are all cool, I am lucky I suppose. Good luck with the weird-o's.