I don't know why everyone here has missed the obvious. Each "box" is actually a crate. And we all know what comes in a crate, right?
That's right! It's obvious that each of these crates contains a Tasmanian Devil!
Better be careful! Once unleashed, the Tasmanian Devil is the most feared of all creatures! He eats A tickets, aardvarks, ADRs, annual passes, ants, B tickets, bears, boars, C tickets, cast members, cats, bats, D tickets, dogs, hogs, dragons, E tickets, elephants, antelopes, pheasants, ferrets, giraffes, gazelles, stoats, goats, shoats, ostriches, lions, jackals, muskrats, minks, dingoes, zebras, Fast Passes, Figments, foxes, boxes, octopuses, penguins, people, warthogs, yaks, gnus, newts, walrus, wildebeests, moose, mice, snipes, elk, wapiti, tortoise, roadrunners, elands, fifth gates, foxes, wolves, guinea hen, vultures, eagles, hummingbirds, sea turtles, squids, salamanders, water buffalo, bison, kangaroos, dawes, unicorns, vacation clubs, vixens, wigeons, yaks, yetis, newts, walruses, gnus, wildebeests, XPasses
… and especially DISsers!
SSB