A New Home in the Country

You throw it down to the ground and scream, dripping blood from your finger stumps. The candy bar sits on the ground, gnashing at you. Before your very eyes, it begins to bulge and grow, filling with a sickly bubbling and crunching noise. It grows two big thick dinosaur-like legs, two long, sharp-clawed arms, and an angry, noseless face on a tiny head. It grows into an 8 foot tall red monster with foil teeth and "Kit Kat" printed on its chest. It has menacing but chocolatey claws getting ready to slash at you.

The man behind the counter seems not to notice, or not to care, as the monster lunges at you.

What do you do?