Is The Cat In The Mug Or On The Mug? Posted on April 18, 2015 by DaveApril 18, 2015 We ran across this mug at a yard sale today, and of course Dave went right for it. He didn’t immediately notice the collar, but then we couldn’t get over how PERFECT it was!! You tell me though: is the cat IN the mug or ON the mug? 🙂