I was actually thinking about going to his school and putting in a complaint there about his behaviour. However, he doesn't go to my school so..
I thought about typing up a note, saying something like this (read below) and putting it in his mailbox.
"Thought we wouldn't catch you in the act, eh? Well, I now have video evidence of what you have been doing, that show your face. We've told you already to stop, and told you we will go to the police. If there are any further incidences, these video tapes will be going to the police. This is your final warning."
Maybe it'll scare him? Sometimes I am afraid it will just intrigue him even more, though. =\
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