The most annoying ants ever.

An elderly woman in Germany who heard her doorbell rung repeatedly late at night naturally called the cops. Although it seemed like the work of a prankster, officers uncovered a much smaller culprit: ants.

Police in Offenburg responded when the 75-year-old woman made a desperate call at 3 a.m. on Wednesday, the German news magazine Focus reported. But when they arrived, officers didn’t find anyone at the door. On closer inspection they found that ants had built such a large nest that it was pressing the doorbell components together to make it ring.

[link to news.discovery.com]