It's new, so I'm not going to use it - S5.E8

Daddy has brought Tip and Tippy some playdough. Tip stares at his new playdough but doesn’t want to open it and ruin it. The next day he takes it with him to kindergarten, but comes up with all kinds of excuses not to let his friends use it. While the others are playing and having a good time, he concentrates on guarding his precious new playdough.