Falling in the shower / bathtub can be really dangerous. Here’s one instance:
My wife’s father slipped in the bath while showering, fell on his head, landed up unconscious in the bathtub and was niftar. Her brother found him there the next day (probably – it could even have been a day earlier… he lived alone).
He also had diabetes (type 1), so it could be that he was unconscious but living and the diabetes led to the end.
I never met him – it happened a few weeks before the first date.