Snack time surprise. The first one’s always free.

6ABC reports:

A mother of a 4-year-old was arrested after her daughter brought heroin into a daycare and began passing it out to other children, Delaware State Police say.

Troopers were called to the Hickory Tree Child Care Center located at 2 Hickory Tree Lane in Selbyville around 11:45 a.m. Monday after daycare workers observed some children with small bags of an unknown substance.

The white powdery substance, which was still enclosed in the bags, was removed by the teachers and immediately taken to the Selbyville Police Department where it was determined to be heroin.

Police say a 4-year-old girl unknowingly brought the small bags of heroin into the childcare in a backpack that her mother gave her after hers had become ruined by the family pet sometime in the night.

Upon thinking the packets were candy, she began passing them out to her classmates.

Thankfully, the teacher got hep to street drugs being handed out and put kibosh on it.

*subhead*Uh-oh.*subhead*