I definitely follow the urinal parking rules. I've been driving for 5 months and I've already got one dent and one scratch on the left hand side of my car from morons (who had unfortunately left by the time I got back) parking next to me and swinging their doors open without due care
I can almost understand the people who park diagonally across a few spaces... Discourages people from parking too closely at least
The case of someone not sticking to urinal rules that I remember the most is when I was on a beach as a kid. There were about 3 or 4 families on one beach, all nicely spread out. Then another arived and set up directly on the other side of our windbreak. Cheeky so-un-so's!