For 2013 the Minnesota Vikings played their final game in the Hubert H. Humphrey Metrodome on Sunday, beating the Detroit Lions 14-13 to close out the season and play the final game inthe stadium. Some fans evidently wanted souvenirs from the experience:

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Looks like the maintenance and cleaning crew found many seatbacks all gone after the crowd had departed. I can only speculate what people will do with a seatback – and no seat.   Maybe frame it on the wall? Or steal an actual seat from a different stadium? But you have to give people credit for thinking ahead and bringing along the tools needed to commit the crime of stealing a seatback!