VF4 just came to my local arcade last week. Friday night I printed off a move list for Lei I thought I'd play a few games (having played about 15 games previously) There was a kid playing Lau, I watched a few rounds, and challenged in as Akira. The machine is set to 2 rounds and costs a buck. I missed a double palm off the start and the guy got off a huge juggle leaving me with 1/4 health. I came back and won 1st round. Second round went a little better and I won with a low reversal. The guy starts telling me off for not giving him a mercy round. I told him that there was no way I would give Lau a mercy round when I had just put a dollar in less than 30 seconds ago. He then told me that it was common decency to give a mercy round and that if I was going to play like that I wasn't welcome in the arcade. Whats your opinion? I would have given him a mercy round if I completely killed him, but this was a really close matchup...and he had already been playing a one player match -I only challenged in when he was in danger of losing a second round. I don't know why it bothered me so much.