Your boy sounds very sweet. The reason I suggested getting his hearing checked, was about 10 years ago, on our neighbour's property, there was a bunch of kittens that we were trying to trap. One was orange. I was able to walk right up to him. He never moved, I even clapped my hands beside his head!! Several seconds later, he looked up, saw me, and took off. We were able to remove several kittens. However, the colony was wiped out by distemper. EXCEPT for Tina Peepers(also a tuxedo)who had been living under the shed with the dead baby kitten bodies. As I write, Tina is curled up on the counter, gathering her strength. Supper will be ready shortly....Hope all is well and glad the litterbox problem was resolved!!! Sandra