I've used this method to clear out sections of the gym.Should have left him a methane present during your last set. Something to remember the next time he wants to bother you. haha
I ate lunch one day at some Mexican restaurant with a bunch of friends to celebrate a birthday, and a few hours later I went to the gym. I was starting to feel a little uneasy in my stomach and I had a lot of gas.... Well the gym was mega crowded that night and I couldn't even get near the dumbell rack because every douche McGee was standing a foot away curling and staring at themselves in the mirror. So I walked back and forth and released a long trail of a methane present, and well.... Needless to say, about half of them walked away from the dumbell rack in the next 30 seconds and that was just enough for me to grab what I needed and go. This method is highly effective.