EndlessHandbagLoop

Hello, I live in Houston Texas and I have these awful neighbors that throw loud drunken parties sonetimes. I've seen a man from my upstairs window peeing on the other side of the shared fence. What legal options do I have? Can I record it for evidence? Am I violating their expectation of privacy? I believe the urination can cause a waste hazard and the smell. I also don't like seeing a strangers genitals exposed from my second story window when I look down.

Location: TX