Every time my cat touched the dog, or vice versa, the cat would then start cleaning the spot frantically. I used to say "removing dog cooties".
He never did it with people. Just the dog.
He also ran over & greeted everyone at the door. He'd follow them & keep tapping their legs 'till they reached down & petted them.
After all, they weren't there to see ME. It was HIS house. I was just the live in help.
I really miss him.