Builders renovating an office at the University of Hertfordshire in Hatfield, England, were surprised to find a fox head jutting through a hole in the floor. The fox had apparently tried to wiggle into the room from below and became stuck.
RSPCA animal welfare officer Kate Wright, who freed the animal, said: "I just had these big eyes staring at me."
She added: "Here was this fox's head poking out of a floor and he was so jammed he couldn't move.
"I actually think he had quite an embarrassed expression on his face."