It's difficult to escape the lure of the concession stand. They’re at the movies, beckoning to you with rainbow-colored boxes of candy and buckets of warm, buttery popcorn. You’ll find them at circuses and fairs, pulling you in with bags of fluffy, pastel-colored cotton candy and crispy funnel cakes, sweet with cinnamon and sugar. At baseball games, you don’t even have to get out of your seat to get peanuts or a box of Cracker Jack. The concession stand comes to you. It’s not a question of if