I have 5 cats. All were indoor until last Summer. I leave my door-wall open during the daytime in Spring, some Summer, and fall so the cat's can come in and out as they please. No winter time here in Michigan. I am normally laid off from work from May to late August so I am home a lot and keep and eye on them. I have a full chain linked fenced yard. My cats are EXCELLENT and have no clue about climbing fences or under them means. I do flea medicate them regularly. I let them out about 11:00am until around 8:00pm. The cats appear to be very happy and they are well loved by myself at all times
. Any advice would be appreciated.......