My dear friends Bill and Maryanne lost their beloved (and enormous) golden retriever Moja this weekend. Moja was a very special dog — one hundred and twenty five pounds of big yellow love — and he died quite suddenly of a twisted gut. It was beyond awful. There were big gulping sobs and tears all around. All I could think to do was drive home from the vet’s office and pull the emergency stash of pot roast out of the freezer. I made it ages ago, and there was too much for just the two of us, so I froze…