Potty Training?

It is possible that we are experiencing the beginnings of potty training. YIKES! He is definitely aware of what is going on. He likes to go sit on the potty - on his time though - never if you ask him of he wants to go! So far they have all been "dry runs" as Casey puts it!LOL! But the funniest thing is when he has to go poop. First of all he has to assume the position, which these days is on his hands and knees in a corner of the living room, usually near the toy box - don't ask I have no idea! Sometimes he comes to us grabbing at his bottom because he wants his diaper off. Other times we ask him if he is poopy and he says "stinky" and turns around and backs up to us so we can check his bottom. It is the funniest thing ever. I have got to get it on video!