I would like to catch someone trying to push my scoot over..
They'd have a bad day, indeed.
You should park it as usual, but then wait and video him doing it.
Then, you go to the police, lock his sorry butt up jail for destruction of property, and then get as much money out of him as possible.
If you live in a place like I do, we will just beat the snot out of him, and throw him in a ditch.. :l