Pick up your dog’s poop, or else it will be delivered to your doorstep.

Residents in Brunete, Spain, which is outside of Madrid, are finding that out the hard way as officials have launched a new campaign to clean up dog feces throughout the town.

Since February, a group of 20 volunteers has been combing the streets for guilty dog owners and then striking up conversations with them, the Local reports.

"They’d ask them what the dog’s name and pedigree was,” a Brunete spokesperson told The Local. “With that information they could find out the address of the pooch’s owner from a registered pet database we have."

The feces would then be delivered to the offender’s home with a warning of a fine, while a cameraman would film their reaction.

Officials believe the campaign has reduced the amount of public dog droppings by 70 percent.

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