This is the first time I've confessed, so I'm hoping to read your own ways of dealing with excruciating behaviour! You might remember my problems with a new neighbour. One of her 'naughties' was siting planters on my property then complaining when I moved them. After a few days of provocation, I threw her largest planter on her lawn. Next day, I received a police visit (she'd complained without revealing her provocation). There were other incidents I won't bore you with. Now, when she bangs my wall in the early hours [not often since her police warning about provoking me!], I do an 'air gun' mime - pointing my fingers like a gun towards her wall with appropriate sound effects, but not so loud she'll hear. I vary this with a Gatling gun 'attack' with appropriate sound effects. Occasionally I do air tomahawks or a bit of mooning [and I have a large 'moon']. It relieves stress and makes me smile, but would surprise ex-colleagues with whom I was always formal.