pokertime.net, Fight
A man with a guitar sings a song narrating the goings-on of a crowded bar. "It's survival of the fittest, when the bar is awfully crowded..." (to the tune of Kenny Roger's "The Gambler").
A man trying to elbow up to the crowded bar can't get an inch leverage because it's crowded and he's not very big. The lyrics of the cheesy song then suggest: "When your gut tells you it's poker time, reach out and make a pass."
The man plots to grab the butts of both of the men standing in his way, but then turns around like he never did it. The recipients of the gesture, standing next to each other and distracted by the female bartender, both turn angrily toward each other. One violently head butts and swings at the other man.
This clears the path for the actual offender to reach the bar and get his order in.
While few straight men/women wish to have their butts anonymously grabbed, the storyline the ad agency chose reinforces the idea that a pinch should seemingly reasonably turn into a homophobic punch.