University of Carolina student Hayley King was arrested in February having been caught red-handed on a hidden camera her two roommates set up after a series of confrontations.

The two other women had wanted King to move out of the house after the fights, but she refused.

The secretly-recorded footage shows King spitting into several containers of food and mixing it around; it also shows her spraying Windex on food.

One of the housemates says she ate some of the contaminated food.

"The aftermath ... caused me to fall behind in my classes," one of King's roommates told WIS News.

"I was forced to switch out of one of my courses because I was so distracted with everything going on. This not only affected me physically, having to deal with the repercussions of the incident, but also mentally from the anxiety that came along with it."

One of the roommates also reported getting a threatening text message from an apparent ally of King's.

"While Hayley is moving out don't f--- with her. Y'all have been f---ing taunting her since the semester started. If she tells me you're f---ing with her I will personally come and check you. You too old to try to be bullying some damn body. Grow the f--- up."

King was arrested five days after the footage was taken on February 4 – she's charged with unlawful, malicious tampering with human drug product or food, a class-C felony that can carry a jail term of up to 20 years.