Video games are full of things that should not work under any circumstances, So I think it would be funny to start a thread dedicated to the stupidest strategies in video games ever used.
For instance, one of the funniest combos I've ever done in Super Smash Bros is when, as Charizard, I noticed the other player would spam jump after I threw them off stage, so I fished for a grab near the ledge and tried back throw into Flare Blitz and they jumped right into the Flare Blitz and died at 20 percent.