I'LL SAY IT AGAIN: THIS ONE'S CATCHING ON TOO FAST!

Kristen went out to Target today to get some child-proof knobs for the bathtub in our bathroom. Why you ask? Because Tobin has already figured out that he can get the water running (he loves the bath - and any water he can get at like the dog's bowl, a glass, whatever's handy) and put his hands in it and make a mess.
I covered the knobs with shoes, towels, etc, but he knows they're there, and he just relocates whatever gets in his way.
I'm not so worried about him falling in or the water bill, as he's only in there when we are, but he normally goes for the hot water knob and we don't want him getting burned.
It really is incredible how much faster the 2nd child learns when they have an older sibling to pick everything up from. We are SO in trouble...