Seriously???!!

So last Thursday is when it snowed and got pretty cold.  When that  happens I sometimes take the dog door out so the wind doesn't blow in, etc.  So I had done that on Thursday and Carter and I were just hanging out around home.  At one point he came up to me with a tiny little cup that holds maybe an ounce and said, "wa wa, peeeas" (water, please is what that translates to).  Carter had found this cup and decided he wanted to water the Christmas tree (just like he'd seen dad do).  Since the cup was so small I really wasn't worried if he spilled it.  He continued to "water" the tree for a bit and then started dumping water other places so I decided that was probably enough of the water.  He kept asking for water though, definitely not agreeing with my decision.  So I decided I'd grab a couple toys, his stool, and we'd fill up the sink in the 1/2 bath and he could splash around for a bit.  I sat in there with him while he played and he was thoroughly enjoying himself.  Chesni then started to bark because she wanted out (which she couldn't do herself since the dog door had been removed).  I literally had to walk about 20 feet to let her out and knew it would only take seconds.  I considered the fact that Carter could try to climb into the sink, but it's pretty small, he hadn't even so much as lifted his leg up when I was watching him, and I thought I'd be safe since it would only take me 5 seconds to let Chesni out.  That's where I guessed wrong...I walked the 20 feet, let the dog out, came straight back to the bathroom and this is what I found.  My little "angel boy" sitting in the sink.  Who thinks of stuff like this - oh yeah, Carter, who seems to be quickly resembling Curious George.