Cops in Hawaii say MMA legend BJ Penn was arrested over the weekend not just once, but twice, over multiple incidents he had with a 79-year-old woman.
The Hawaii Police Department tells TMZ Sports ... the first encounter Penn had with the elderly lady went down on Sunday in Hilo at around 8:45 PM.
Cops say the woman told them "Penn took her mail and then shined a bright flashlight in her eyes when she asked for the mail to be returned.