Some guests overstay their welcome, but 25-year-old John David Spencer may be the man most in need of houseguest etiquette lessons. Luckily, prison will afford him time to learn such basics as “don’t pee on the couch and stab the host.”

According to King County, Washington, Superior Court documents, homeowner George Ellis Estephan was hoping his friend, Spencer, would join his roster of roommates. Then Spencer crashed at Estephan’s and was caught relieving himself on the living room furniture. When Estephan confronted his buddy, a brawl ensued, and soon spilled outside, where witnesses say they saw Spencer getting the better of Estephan. Roomie Jason Del Fiero claims he drove Spencer off with a punch in the face, but Estephan had already been pierced with a steak knife. He died later that night.

When police found Spencer the next morning, they heard him mutter, “My life is over.” He’s been charged with second-degree murder.

» Scott Saxon