This is something I thought about one day when I slipped and fell getting out of the shower. Luckily enough I didn't hurt myself, but I only just missed knocking my head on the basin. My dd is only 5mths old and my DH works for 12+hrs a day. I now try to have a shower only if DH is hom, which can be tricky sometimes....She'd be alone for so long without food or care, it really is scary, but there's nothing I could do to change it!