I get annoyed when I go on the inside line, 2 wide, and I end up slowly drifting toward the outside line..."OH SHIT OH SHIT OH SHIT"...hopefully the resulting contact is harmless and I don't send someone into the grass/wall. When that kind of light contact happens, an apology is nice - and often heard, and I like to see no one getting any 'competitive advantage' because of it. The cool thing is that lots of guys in that situation let it slide pretty quickly. Because there was no harm, they tell you to step on it. I'm like this. Unless someone really puts me off pace, I don't really want the position back, and I don't want them to hurt their race because of 'inconsequential' contact.
Slightly off topic...In the GT300 series, on the last lap of Cape Ring Periphery, Eggs got a lag-bump from me, apparently. It was a bit like that RUF video. It gave me a 2 second lead, maybe damaged him, gave me the win. Lag sucks.