my son is 2 yrs and 9 mo. we started PT in dec '08, taking it slow. he will sit on the potty, but has never actually gone #1 or #2 in it. he knows what the potty is for, will watch mom and dad go (will even read us books!). we use a sticker chart to reward the sitting effort. Even if he is full of liquids, he will sit, then once the pull ups are back on, he'll go in the pull ups...he sees them as diapers i think. it seems he is unable to physically relax enough to go on the potty. however, we will read books and sit for some time comfortably. i tried having him run around outside in big boy underpants, but he'll just make in them, and doesn't seem uncomfortable. i just ordered the potty scotty underpants, cover and also the nighttime ones, to replace pullups. he is in daycare 2x a week and they encourage him to try the potty, but that's it. any advice on what to do here?