put a camera that faces his yard.... put it right by the wall... when you see him outside get your camcorder.... film him a lot... make him feel like a star.... I always overexagerate the things my old neighbor did that pissed me off... kind of was fun... he would get so pissed, he even called the cops... the cops could tell the guy was a moron and joked about it with me... of course they ended with the P/C you guys should try to get along... ha ha.. try it, you will be amazed at how funny they guy will be...