AFTON - An Afton woman grabbed a kitchen knife from her night stand and stabbed her boyfriend in the leg after she woke up to find him getting ready to urinate on her, she told investigators.

Kayla Dianna Criger, 22, was charged Wednesday in Delaware County with assault and battery with a dangerous weapon in connection with the Saturday incident.

Robert Allen Higgins, 29, of rural Afton, who has a history of beating Criger, was a patient at St. Francis Hospital on Thursday.

Hospital officials declined to release his medical condition.

The couple had been to a bar Saturday night and argued throughout the evening, according to a probable cause affidavit.

Criger said she took the knife to bed with her "because she knew something was going to happen," leaving Higgins sitting on the couch.

A short time later, Criger said, she woke up to find Higgins on top of the bed and preparing to urinate on her. Criger said she pushed him back several times, but he got on top of her so she stabbed him in the left leg.

After hiding the knife, Criger called 911 and tried to stop the bleeding, the affidavit states.

Higgins was wanted on several outstanding warrants, including one for owing back child support of more than $8,000.

He has a history of domestic violence charges in Beaver and Delaware counties, according to court records.

In April, Higgins was charged with assault and battery by strangulation in the presence of a minor. He is accused of grabbing Criger by the neck, choking her and hitting her in the face, according to an arrest affidavit.

In that incident, Criger grabbed a fork and tried to stab Higgins, but he twisted her arm and punched her in the back.

In February 2009, Criger pleaded guilty to a misdemeanor assault and battery charge and was sentenced to three months in the Delaware County jail after she attacked a woman.

Criger's bail was originally set at $10,000 but after she appeared in court with her attorney, the bail was reduced to $5,000 and she was released on Wednesday, said Kenny Wright, assistant district attorney.