thanks so much for responding.
ds is only 15 months, but is weeing on demand after his bath in the evening (guess is a temperature thing), so i thought it was worth seeing if he would wee on the potty, so he might build the association.
i knew it was way too early, but thought if i had no expectations, it would be a bonus if he took to it.
anyway, he hates the potty, refuses to sit on it and if he does, he clings to me/cries/gets up.
so i might invest in a 'seat' for the future.
thanks again