Sandusky police said Nicholas Ross, 23, allegedly left a party after getting into a fist fight Tuesday and returned with a handgun, the Sandusky Register reported Thursday.
Police said partygoers called 911, but the suspect was gone by the time officers arrived.
Investigators spotted Ross walking shortly before midnight with Tamar Walls, 23, and Jonathon Shine, 23, and the trio entered a rental home. Police said Walls gave them permission to enter the home, where they found Ross sitting on the toilet.
Ross refused to get off the toilet, telling officers he was defecating, police said. However, officers forced him off the toilet when he reached for a pile of clothes, and the arrest report said "there was no sign of a bowel movement in the toilet."
Ross was arrested on a count of carrying a concealed weapon. Shine and Walls were arrested on charges of obstructing official business, and Walls was also found to have a bench warrant for his arrest. Tannie Shine, 57, who was found inside the home, was also arrested on a bench warrant.
Police said the handgun Ross had been carrying was reported missing from an unlocked trunk about three months ago.