Some phenomena in the history of humankind simply defy logic.

The Dancing Plague of 1518, for instance. The Bermuda Triangle. Images of Jesus on toast .

Perhaps it's not our job to fully understand these mysteries, but simply to marvel at them — and that may also be the case for the sudden, seemingly inexplicable, absolute frenzy over a cup that's shaped like a little bear.

Coffee chain Starbucks released a $43.95 "Bearista" glass cold cup Thursday as part of its new holiday collection, and not only did the hat-topped tumbler sell out almost immediately , but videos circulating online show customers fighting each other to get their paws on one.

Empty-handed fans who lined up before dawn are sharing their outrage on social media , re-sellers are listing them for as much

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