stupid question

[havenbounce]

OK this has got to be the stupidest question asked but I hey I got to ask. I've had king snakes and balls and all of them have pooped wherever they wanted in their enclosure, but my boe is weird. I've had him a month and he's gone twice. Both times he has gone in his water bowl. Is this something they do or is it something that just happened because he might have just been in his dish for a soak. Makes for easier cleaning though.
Ginnette