Being a major league baseball player, it seems you will never not flinch when a 90+ mph fastball comes right at you.
At the Astros game today, catcher Martin Moldonado took a 93 mph inside fastball from a White Sox pitcher and clenched when it nearly hit him.
As a result, he ends up ripping a fart that is caught on video. It seems like he generously applied some Gold Bond to his crack region before the game so a small cloud is visible.