My 2 1/2 year has been mostly potty trained for about 6 months but we cannot get her to use the potty when we go out, she screams and crys if we try to put her on a toilet out in public. What should I do? This makes it so hard to go out to a restaraunt or a store becasue she tells us when she has to go but will throw a fit if we try to take her a toilet. She uses the regular toilet at home and at familys house, and never needs a diaper or a pull up at home. Thanks