We have two houses behind us and one to the side of us. I don't know anything about them. Well. The one next to us is an old lady who says hi sometimes and that's it. The people behind us.. never spoken to them. The only time we had an issue was that during a recent windstorm, their fence fell down. (Yes, -their- fence. They installed it when their house was being built; we didn't want a fence.) It stayed down for about a month. We had a feeling they were expecting -us- to fix it, but finally someone showed up and fixed it. (The only issues we had with it being down was that they had dogs and we didn't want to be the ones getting a fine from the homeowner's association.)
That's about the most interaction we've had with them.
The neighbourhood as a whole is pretty snobby. When we first moved in, we were invited to the block party. They asked us what street we live on and told them.
Their response? "-Oh-. You live in Phase -Two-?"
"Uh-huh. -We're- all from Phase -One-."
And then we were never invited again.