The door to my coop has a self-latching door on it. To keep from getting locked in, I drilled a hole through the door frame and ran a nylon string through it and attached the string to the latch outside. On the inside, I tied a washer to the string to keep the string from getting pulled thru, and I just hang the washer on a nail inside to keep tension off the string. Works great. You want out, pull the string and the latch opens. Unless... your sons break the string and don't tell you! It was early this morning and no one knew I was in there to let me out. Only one way out... Through the pop hole door! I couldn't believe I fit and managed to avoid the poo on the ramp. Oh well, guess that means I can still have an extra piece of pie at Christmas dinner!