I lost control in a bath once, just as I was about to get out... Interesting experience, would like to repeat it some day. Since the water was cool it was like others have said you can feel the warmth ^^ But I mainly do it in the shower if at all.
I can be a bit pee shy sometimes, so recording wettings is something I do pretty much every time I decide to do one.
I've never been really confident in my body, but I like watching recordings that I've made. It's odd.