Story highlights A 4-year-old brings 249 packets of heroin to daycare, police say

Teachers at the daycare find children with the packets

The girl's mom is charged with running a drug property and endangering children

Nice kid. Wrong thing to share at daycare.

A preschooler's mom was arrested this week after her 4-year-old daughter brought 249 packets of heroin to a Delaware daycare and handed them out to other students, thinking it was candy.

Police say the child ended up with the drugs when her mom gave her another backpack after hers was ruined by a family pet.

On Monday, teachers at Hickory Tree Child Care Center found several of the children with the packets and collected them, assistant director Tamicka Goodman told CNN affiliate WBOC

"They found it right when she passed it out," according to Goodman. "So we do thank God that he had a watchful eye and most of all we thank God that none of the children are injured."

JUST WATCHED This is your brain on heroin Replay More Videos ... MUST WATCH This is your brain on heroin 01:51

Delaware State Police have charged 30-year-old Ashley Tull of Selbyville with maintaining a drug property and three counts of endangering the welfare of a child.

JUST WATCHED NYPD to carry heroin overdose antidote Replay More Videos ... MUST WATCH NYPD to carry heroin overdose antidote 01:51

In addition to the 4-year-old, the woman also has a 9-year-old son and an 11-year-old daughter. All of the children are staying with a relative. Tull is under court order not to contact them. She was released on $6,000 bond.