Police said a Spartanburg man was so angry over some "your mama" jokes that he cut his son-in-law and threatened to kill him. Spartanburg police said they were stopped by a man with blood streaming down his arm who said his father-in-law, 72-year-old Marvin Tutt, had cut him while they were driving. The man told police he was driving with Tutt and another man and they were "talking trash" when the conversation turned to "your mama" jokes. The police report said Tutt became angry with the jokes, opened his knife and held it under the victim's throat. When he tried to stop Tutt and pull the car over, Tutt cut him, according to the report. The report said that when the man got out of the car to run away, Tutt ran after him but got back into the car. Police said both the man and Tutt were treated for lacerations, and that Tutt was extremely intoxicated.