Making an Indoor Cat an Outdoor Cat?

Making an Indoor Cat an Outdoor Cat?: "I have two cats; one, Guinness, is a four year old female, the other, Finnegan, is a two year old male. They have always lived indoors.

We also have an outdoor cat, Thatcher, who lives in our barn and has a pretty good life. She walked onto our farm 3 years ago and seemed to have been dumped. She smelled of powders and domestication when she came onto the scene. We gave her some space in our barn and she seems to enjoy herself.

We have a small house. In my opinion, as the guy who cleans out the litter box, our indoor cats have become too big for our home. They are both pretty large; Guinness is overweight and Finnegan is simply a big 'no-neck' pounder, who is also the biggest sissy the world has known. He thinks that he is a lap dog.

Guinness has made numerous attempts at"