I've been witness to the great cat distribution system.

Our current cat has moved house with us twice. The first house at lived at, we were on the ground floor of the place and this furball just waltzed in and took over. Much to the dismay of the cat we already had.

The preexisting cat was similar. She would hang out at a bus stop that my SO would frequent to get to work, didn't take long before she followed my SO home. She was a shit, but she was cute enough to get away with it. Rest in peace Zora.

Anyways, I would submit that the only reason we haven't had more cats distributed to us is that we lived on the fifth floor of an apartment for a long while. We recently moved into a house so that might change.