Toilet Training Gone Horribly WRONG

We thought that now would be a good time to start getting mini Munchie used to the potty.
Now that we know his 'routine', it's easy to predict when 'its' going to happen.
He chooses the time to sit on his potty in front of Barney. So at least I know that he won't be going anywhere as long as the purple blob is entertaining him.
Well as it happens on this particular day, Barney just wasn't captivating enough, and the next thing I hear from the other room is 'uh-oh poo-poo'.
Sure enough I round the corner into our living room and am confronted with the hugest poop I've ever seen - right on the carpet - IN FRONT of the potty.
....we still have a long way to go.