I had issues with jerks parking at my apartment complex when I lived in Lakewood. I did, of course, have one towed once, but prior to getting fed up (despite the reserved parking sign being directly in front of my parking spot) I left nice hand written notes informing the offender that they were illegally parked and that this was their one and only warning to never do this again or else they'd be towed. Mr. Fred, it may sound silly or moot to do so, but sometimes leaving a note lets people know that they're pissing others' off. Parking aside, if I'm completely unaware my behavior is pissing someone off I keep acting the way I do. Although, if I find that my behavior is pissing someone off, depending on the situation, I'll probably continue anyway (like when dealing with libtards).