Police in Siloam Springs arrested Everett Lee Compton, Jr., 49, on Monday after he was allegedly caught abusing a donkey owned by Emert and Joyce Whitaker.

The Whitakers had previously told police that they have had problems with people harassing their animals for the past three years. When “no trespassing” signs didn’t work, the couple set up a camera to photograph intruders, according to local station KFSM.

The photos, which were turned over to police, showed a man placing a bag over one donkey’s head and then rubbing his pelvis against the animal’s rear, according to ArkansasMatters.com.

The Whitakers also photographed the same man with the donkeys on July 5 and 6. Police said the pictures showed the man ― later identified as Compton ― feeding a donkey from a bread bag while rubbing his pelvis against the animal.