IF SASSY,IS AN INDOOR/OUTDOOR CAT,THEN ITS POSSIBLE,THAT SHE HAS MADE FRIENDS,IN THE NEIGHBOR HOOD,AND HAS FRIENDS,THAT YOU ARE NOT AWARE,OF.
I'm sure that's the case. When new neighbors moved in next door, a family with a bunch of teenage kids, Sassy was in solid with them before I even said "Hello". Apparently, when he's outside the house, Sassy is a social butterfly.

Thanks for your posts, Gary, and I love your new fish bed!