Minn. professor returns from vacation, finds office wrapped in aluminum foil

all covered in foil. Books and pens were individually wrapped, so was the phone, a ball cap, a bottle and the coffee maker.

Bur said it's a sort of tradition among his research group. He goes on vacation and when he comes back there's ... something.

That last time it happened, his office was decorated for a fairy princess. Pink fabric and bows covered everything. The pink glow from the office could been across campus.

Senior Kristen Jahr said the foil prank required 10, 200-foot rolls of foil.

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Information from: The Free Press, http://www.mankatofreepress.com