Hi All. I have a great run for my ladies and I feel pretty good about its safety...except. There is a spot about five feet from the ground where we have an opening 2x3ft wide. It is not covered with mesh, but has slats of wood instead. There is about 12 inches between each slat. So, I am wondering if racoons can squeeze through small openings. Should I be woried? Thank you for your help and advise.