I had one of those events during the dark days of my divorce, when I was sleeping in the garage along with my bikes. This was a non-hook bead rim. The tube makes enough of a creaking noise as it slinks its way out from between the tire and rim, that I was awake and alert for the full appreciation of the ensuing BANG. Needless to say, it took me several seconds to realize what had actually happened, and collect my heart back down from the ceiling.