you can do it...but why would you wanna lose to an opponent when you could have avoided the duel? or tides could turn later on and you are going to win but it times out
i also heard that they had a glitch with the tele tabs as well that if you clicked at 0 hp it would tele you and wouldnt lose the stake but the person who did that alot said they fixed it prob just so he wouldnt have to share how really you do it lol.