In South Carolina, a man is facing a lawsuit from his ex-girlfriend after an alleged “prank” went too far. The man reportedly entered her house without permission, armed with a knife, while wearing nothing but her underwear on his face, which has led her to sue for “civil assault” and “great emotional distress,” as detailed in her legal filing.

According to the complaint filed by her lawyer, Bradley W. Bonville, in Charleston County on September 29, the actions of the accused, Jackson Arnold, were described as “extreme and outrageous,” crossing all lines of acceptable behavior in society. The lawsuit, viewed by Law&Crime, outlines the gravity of his conduct.

Arnold, who was 25 at the time of the incident in May, is currently facing serious charges. These include assault and battery of a high and aggravated nature, first-degree burglary, and possession of a weapon during a violent crime, as per the available court records. He allegedly broke into his ex-girlfriend’s home on Westway Drive in Charleston by using a detached garage apartment as an entry point while she was away.

The legal complaint highlights that the two had previously been in a romantic relationship that had ended. Following their breakup, Arnold reportedly became fixated on his ex-girlfriend’s whereabouts.

The document further alleges that after their separation, Arnold began to stalk her, going so far as to follow her to her job as a nanny for young children in Charleston County, causing her significant distress.

According to the victim, Arnold traveled to her home in downtown Charleston on the evening of May 2 while she was out with several of her friends for dinner and drinks. He allegedly entered her residence and hid in her shower with the pair of underwear concealing his face and no pants or undergarments on, while in possession of a “large knife.”

“The plaintiff was not aware that any other person(s) were in her home and there was no apparent signs of a break-in,” the complaint says, noting how the woman changed clothes and was about to leave her residence to walk to an adjoining house owned by her parents. “Without warning, the defendant appeared from the plaintiff’s bathroom. … The Defendant was not wearing any clothing other than a set of the plaintiffs underwear that was draped around his head, concealing his appearance.”

The woman says Arnold began to approach her “at a rapid pace while wielding the aforementioned knife.” She was able to “successfully parry the knife” from his grasp, which sparked an alleged scuffle between the two of them. “The defendant pressed his hands against the plaintiff’s throat, forced her to the ground and choked her forcefully,” the complaint states. “The plaintiff was able to remove her underwear from the defendant’s face, thus exposing him completely.”

Upon the removal of the underwear, Arnold allegedly stopped choking his ex and began “muttering uncontrollably.” The woman rushed over to her parents’ house and called the police, per the complaint. Arnold allegedly tried telling the woman that he was trying to “prank” her in an attempt to “lighten the mood” and talk, according to his arrest report, which was obtained by local NBC affiliate WCBD.

Online court records show that Arnold’s case was still pending as of Sunday. His last court appearance was Oct. 17.