The only time i might also contemplate it, ended up being that it was the only chance I had a chance to win or stay in the game.
(p.s. in a tournament I did watch a guy who was behind double on a hard 19–only to receive an ace and win the hand if I were playing in a BJ tournament and was behind far enough. Dealer was showing a 10 and ended up with 17. He ended up not winning the table, but at least a chance was had by him to win. Had he not won and doubled he’d not need had any opportunity.)(*)