Wanna piss off your wife??? THREATEN TO BURN HER LOUBOUTIN SHOES ... 'cause that's now at the center of a nasty divorce war starring a former University of Oklahoma running back.
The man who allegedly threatened shoe-icide is Brennan Clay -- who's marriage hit the skids when he accused his wife of banging ex-teammate DeMarco Murray (allegations he later retracted).
But according to court docs obtained by TMZ Sports, Clay's wife wants Brennan thrown in jail -- after he allegedly sent her a picture of her expensive shoe collection in a pile with the caption, "I'm setting all of your Louboutins on fire."
Oh hell no.
It appears Clay backed off his alleged threat -- but his estranged wife says the fact he messed with her property is in violation of a court order to not harass each other during the divorce.
When reached out for comment, Clay told TMZ Sports the allegations are false -- he never threatened the shoes -- and says text messages are bogus.
The judge will ultimately decide how this thing plays out ... stay tuned.