I used to work in an office where we had 6 parking spaces, four went to the managers and the last two were for the six supervisors. They were a bit deeper than the other spaces and at the end of the car park. We worked out that as we all had small cars we could squeeze four cars in and the other two cars would be parked in front facing across the car park.
This worked pretty well, if anyone needed to leave early the others would move for them. Then someone left and this arrogant twat was promoted. He was going out with the bitchiest woman in the office and the two of them used to stretch their work out to get paid overtime, He hated moving his car and regularly kept people waiting for 10 or 20 minutes. It was fairly easy to do as this was in the days before mobile phones. Our main doors would be locked at 3.30 pm and unless you were a keyholder you would need to ring the bell for someone to let you in after that time. There were no offices on the ground floor, so people would usually call the lift and phone from there to get him to move his car.
I was quite good at getting in late enough to park across the front, so they didn't often hold me up. Until one day when I had a family event to get to in London and needed to leave sharp at 5pm. The traffic was light that morning so I ended up with the twat parked across me. I realised he'd blocked me in, so I spoke to him and his girlfriend in the mornng and asked them politely if they could move their car at 5 so I could get to my event. "No problem." they both said.
In the event he didn't move when I asked at 5 pm. "I'll be down in a moment." he said. He didn't move when I got back in and called from the lift. He moved as slowly as possible when I went and stood by his desk and in the end it was 5:30 when he finally moved it, the pair of them laughing their heads off.
Karma came calling two weeks later. Everyone had forgotten what he had done to me, so his brainless girlfriend couldn't stop telling everyone how they had found their dream house and they would need to leave on the dot of 5 pm the next day as they had an appointment to view it.
I knew one of the other supervisors had a doctors appointment and would be in late that morning, so I left home deliberately late and made sure I was parked across the front blocking them in.
They both came to me separately during the day and and told me bluntly I had to move for them at 5 pm. "No problem." I said. Five o clock came and the twat came and told me to move. "I'll be right behind you." I said picking up my coat. I put it down when he went out and waited. Sure enough a few minutes later I heard the doorbell buzzing. He had to wait a bit to get back in because most people were hanging around to see what happened and there was no-one leaving to let him back in. When my phone rang I picked up my car keys and called out for someone to answer and tell him I was on my way down. Of course I wasn't, I wondered around for a bit and went back to my office. The next time he managed to get back in and phone my desk, I was nowhere to be found. I moved my car at 5:40 pm.
They confronted me when they got in the next morning and I told them what I had already told everyone else in the office. "I kept them waiting 10 minutes longer than they made me wait. Next time it would be 20 minutes."
They missed their viewing and didn't get the dream house and they never kept me waiting again.