I've had a rude opponent once, and it was very recently. Was playing a BPB match and his opening remarks were "just shot -7" and acted like it was on - and this was a regular non-betting game. He lost the first hole, so I talked some junk back. He kept flapping his gums.
On the 6th hole I think, a makeable putt lipped out and it was even, and stayed until it went to extra holes. In overtime, another one lipped out, he won, and he started with the profanities. He had all the close shots because he used expensive balls, and I use balls that are 64 cr./sleeve. I'm not about to waste good balls on matches that don't earn me credits.
Would've been nice to win and shove it in his face, but the golf gods had no such design for me. Ah well.