Police in Boise still aren’t sure what caused the argument between John Olele and his roommate. But while the philosophical disagreement that sparked the row is unknown, the end result is: one missing nose.A neighbor called 911 on Sunday night, telling cops they’d better get out to Olele’s home because there was a fight, and someone had just gotten hurt.When police arrived, they found Olele’s roommate covered in blood, with most of his nose missing. The 30-year-old was booked on charges of mayhem, which could mean a prison sentence of up to 14 years.Meanwhile, despite an extensive search of the house and the yard, the missing nose was never found.