I often feel like when there's a 'never seen it before' in baseball that I have indeed seen it before (see "Game Winning Inside the Park Homer", for example). Not this one though!
And the Johnny Bench one came on a Manny Mota steal of home attempt, sounds like he went out to catch the ball across or over the plate to try to tag Mota out, so not even a swing by the batter.
The Boston Globe game story has the Sox almost saying Sosa did it on purpose, those are some fast reflexes if he can track the pitch and also see where the catcher's glove is going to be, and wondering why he would check a swing in that scenario, just take a full hack so it's obvious.