Ok “stole” is a strong word but they are trying to coax my boy to live with them and were just caught by my ex picking the cat up and taking it in their house
It’s a very friendly cat but is like that with everyone that walks past, they told my ex he even has a food bowl in their house
He said they started calling of him as soon as they got out their car
Now I know cats chose their homes but I don’t think you should take them on purpose 
I wanted to knock but it’s past midnight, aibu to post a note saying he has food allergies and to please leave him alone? They were concerned about him being out at night but I have a catflap he’s just hunting/wandering
They also called my other cat “skinny” but she’s perfect weight 