SARASOTA, Fla. (WFLA/NBC News) – Call her the “Party Pooper.”

A Florida substitute teacher is accused of sabotaging a child’s birthday party by smearing human fecal matter on picnic tables and benches.

Sarasota County deputies say Heather Carpenter had a problem with the way the principal at Phillippi Shores Elementary School handled a complaint, so she decided to get back at her by ruining the principal’s daughter’s birthday party at a nearby park.

Michael Hutchinson witnessed the incident, and at first thought Carpenter was with park maintenance.

“Once I got over here, I could smell it instantly and I knew she was vandalizing it,” he says. “You could see fecal matter on the ground, and just the smell of urine, it was really, you could really smell it.”

It ended up costing the county $2,300 to replace the damaged tables.

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