What did Arthur (Boo) Radley do (at age 33) that landed him temporarily in the country jail?

After fifteen years living at home, the thirty-three-year-old Boo is rumored to have stabbed his father in the leg with a pair of scissors and then quietly continued about his business of cutting out newspaper articles. Refusing to permit his son to be deemed insane or charged with criminal behavior, Mr. Radley allowed Boo to be locked up in the courthouse basement: "the sheriff hadn't the heart to put him in jail alongside Negroes". Boo was eventually brought back to the Radley home.