Meet Your Humpday DA of the Day

We've got more than a month until Halloween...and already got crazy people dressed in funny costumes doing illegal things.

Someone in a full-body CHIPMUNK costume went into a pharmacy in Ville Platte, Louisiana on Saturday afternoon...pulled out a GUN...and robbed the place.

The chipmunk stole a bunch of pills, then ran out of the store. He also stole the pharmacist's cell phone, but when she told him there were pictures of her grandkids on there, he popped out the SIM card so she wouldn't lose those.

The cops are now trying to track down the pill-stealing, gun-toting chipmunk who also has a soft side.