I read once before that you look everywhere that you KNOW HE CAN'T POSSIBLY BE, and then look again. I had a ball come up missing about 15 years ago. I eventually gave up the search, and figured she was long gone. About 9 months later, I went into the guest room to pull a blanket out of the closet, and there she was!!! Hungry and thirsty, but alive!!!! Look for them to be wrapped around couch legs, up under the end tables, just anywhere you would never EXPECT them to be...