collar snafu
When you own several park hobo mongrels and someone breaks into your house and puts a collar belonging some other dog on one of your mongrels. Most common if none of your dogs are viable guard dogs.
Someone snuck into my house and put a collar for a dog named Hunny on Mila. Rufy was asleep on the job and let it happen. So I tell everyone it’s a collar snafu and they happen all the time.