If you give a boy a rolling pin, he might make Pie. Especially if he is wearing a Pi shirt.
If he makes a pie, he'll need some butter.
If you give him some butter, he might stack it up before he mixes the dough.
If he mixes the dough, he might eat some.
If there's any dough left, he will roll it out.
If he rolls it out (with the rolling pin you've already given him), he might make some filling.
If he makes filling, it will be pumpkin.
If it is pumpkin, he will say yum.