We had this conversation this morning. My roommate came in from getting mail and said "Tell me "No Sixx - that's not going to happen."". I'm all "Say what?".

After some back and forth I found out about tiny cat prints in the snow.

I happen to know there are two outdoor kitties in the neighborhood and one loves to walk right up my front walk. So my heart didn't stop.

I also explained that at three kitties we were definitely at the max for these cats. They all had somewhat rough beginnings and just don't need more cats to deal with.
I know which rescues to call if we ever see a TNR situation. I even know how to do TNR if need be.
We know these cats have their own issues and the stress of another cat wouldn't be good for their balance.

Makes my heart drop every time I see prints in the snow though. We don't live in an area where cats should be outdoors. I actually saw a coyote at dusk once. From then on I knew people who let their cats out were taking a tremendous risk.