HELP, ds will point at the potty and toilet and say that it is for wee wee and poo, but absolutly refuses to let bum touch plastic, he refuses to sit down on either just says no . He is 2yrs 2 months and we have done all the usual stuff, the potty is left out so he can see it al the time and we have decorated it in sickers and talk about it so he knows what it is all about. Does any one else have this problem? He literally just locks his little body rigid so he cant sit.