Now, I agree that there are some individuals (as everywhere) who get carried away or go to places they should not without permission (hangars, private ramps,...), and these definitely deserve to be put into their place or removed from property.
I have myself bumped into a few down the road, and while most enjoy aviation, they do not always know the rules associated (e.g. that a section of the apron can be private property) and usually apologize for their mistakes. If not, well get them the f* outta there!