Naughty elf claims to have bag of dynamite, forces mall evacuationJust when you thought the coast was clear on holiday shopping madness -- did you catch this year's Wal-Mart stampede? -- somebody goes and tries to blow up a mall.

Here's betting William C. Caldwell III really, really wanted that last robotic hamster.

At least that would explain why he dressed up in his own elf suit -- come on, you have one of those lying around somewhere, right next to your Snuggie -- and jumped in line to sit on Santa's lap at a suburban Atlanta mall. Mind you, Caldwell is 45.

Instead of a wish list, Caldwell was telling the big guy about his bag of dynamite. The bomb squad found no explosives, but Caldwell is sitting in the pokey on a list of charges.

And a host of cranky evacuated shoppers are probably wishing they'd just stayed home and celebrated Cyber Monday.