If you do share a bath or shower, bathe your kids and get them the hell out of there. Seriously--you're there to get something done; so, do it and get out.

And bathing your kids in a swimsuit sounds kind of weird.

What are you hiding in there, Darth Vader? The Apocalypse? Your ween drop off, maybe? If you're bathing your kid in a swimsuit, the kid's got to wonder if there's something wrong with you. Something wrong with them? My parents bathed me in their natural undressed state; i remember it vividly, and i'm fine with it. I think I would have found seeing them in shorts or whatever very strange and maybe troubling.