Why Must Read Gomer the Gassy Goat: A Fart-Filled Tale?

Purchased Gomer the Gassy Goat for my grandsons. When I took it over both boys, ages 2 1/2 and 8 were playing on their tablets. I told them I had a new book and asked the 8 yr old if he wanted to read it to his little bro. He pretended not to hear. Then I asked younger if he wanted grandma to read it to him or wait until his big brother wanted to read it. Same reply. Ok I said aloud to anyone who wanted to listen, I guess I'll just read it to myself then. They both grinned. I started reading out loud, loud enough to be heard. My son got tickled remembering doing this not so long ago. I was about 4 pages in and could see they had both stopped moving their hands. Page 6 and the younger put his tablet on couch beside his dad and headed over to me. About half way through and the older one wanted to know if this was one I had read to his dad. My son laughed and told him no. I told him it wasn't available back then, but it should have been. By now my daughted-in-law had heard us and came in shaking her head asking in such an innocent voice why he would think that. The other grandma and I are now in process of picking books to make videos of while reading to our boys. We need to pick a few songs to sing as well since neither of us are getting younger. We both expected to by now.