[aigel]

With him being so generous, I'd sit back and watch him do it. Doesn't sound like is in your way much, so make him suffer, the longer it takes the better. I would not do anything else, never is a good idea to escalate things with the neighbors. Just in case however, I would take pictures of the damage (while he is not home) with the date stamp turned on. That way you can escalated it to your insurance if needed.

G