My family always has the door open for our cats to go I and out, but one of the neighbor's cats has gotten in. He's in a room in the basement, hiding in the ceiling (yes, IN the ceiling). I'm guessing he's been there for 2-3 days because that's how long the urine smell's been present, but just discovered today, so I've put food, water and a litter box down there. I've seen this cat in the neighborhood before and he's very shy, always runs away from me. Does anyone know any methods to trap him in a cat carrier so I can return him to his owners or let him outside? I need to get him out asap, he's causing the floor of the ceiling to collapse.