Shane...the only reason to take your ring off in the shower would be if soap, etc., gets under it and makes you break out. Otherwise, leave it on. I don't ever take mine off unless dishwashing detergent makes the skin underneath the wide band start to get funky. I've also had my hands swell from heat and humidity, causing my husband to freak out and make me take it off as he cares more about the finger itself than the wedding band it's wearing. (This from a man who can no longer remove his wedding band as he's put on weight since we were married and the finger kind of grew around it.)
The ring will turn up. Eventually you'll clean the kids room and find it, no doubt being worn by a teddy bear or something.
Kids do oddly logical things. I once lost a contact lens because my young daughter played with them. I finally found it in one of the yellow bowls that I always had handy when I washed them or put them on; in case I dropped the thing it would fall in the yellow bowl. When she got into my contacts, she got a yellow bowl and put the lens in it, just as she'd seen me do a hundred times. If I'd thought of that sooner I could have saved myself a lot of time on my hands and knees on the floor.