that hasent happened to me for a while, a can usually manage a pipe or a bong no matter how high i am, but gravity bongs sometime like i fuck up on my breathing and you know how you let all the air out of your lungs then take a fat hit and take a huge gulp of air, sometime when im really baked i let all the air out of my lungs then forget why im not breathing haha so theres been a couple times whenive gone for a gravity bong with no room in my lungs, kinda embaraseing, at least it was fresh water that spilled though