A news flash for every straight man out there: You’ve been naked in front of a gay man.

In fact you’ve been naked, over the course of your life, in front of many gay men, at least if you have more than a few years on you. And here you are — uninjured, uncorrupted, intact. The earth still spins. The sun rises and sets.

Maybe it was in gym class, long ago. Maybe at the health club more recently. Or maybe when you played sports at the high school level, the college level, later on. Whether we gay guys are one in 10 or one in 25, it’s a matter of chance: At some point, one of us was within eyeshot when you stripped down.

And you know what? He probably wasn’t checking you out. He certainly wasn’t beaming special gay-conversion gamma rays at you. That’s why you weren’t aware of his presence and didn’t immediately go out and buy a more expensive moisturizer and a disc of Judy Garland’s greatest hits. His purpose mirrored yours. He was changing clothes and showering. It’s a locker room, for heaven’s sake. Not last call at the Rawhide.

On Sunday evening, in a story in The Times by John Branch and on ESPN, a college football star named Michael Sam came out. Because Sam is almost certain to be drafted, he could soon be the first openly gay active player in the National Football League — in any of the four major professional sports in the United States.