Getty Images

One day after her appearance on Monday's "Comedy Central Roast of James Franco", comedian Sarah Silverman's beloved rescue dog, Duck, died at the age of 19.

Silverman paid tribute to her longtime friend by posting a touching obituary on her blog which began, "Duck "Doug" Silverman came into my life about 14 years ago. He was picked up by the State running through South Central with no collar, tags or chip. Nobody claimed or adopted him so a no-kill shelter took him in."

She continued by speaking of their years together and the inevitable age-related ailments that took a toll on them both.

Silverman ended the obituary by recounting Duck's last few minutes, where she writes, "I held him close – in our usual spoon position and stroked him. I told him how loved he was, and thanked him for giving me such happiness and for his unwavering companionship and love. The doctor gave him a shot and he fell asleep, and then another that was basically an overdose of sleeping meds. I held him and kissed him and whispered to him well passed his passing. I picked him up and his body was limp – you don’t think about the head – it just falls. I held him so tight. And then finally, when his body lost its heat, and I could sense the doctor thinking about the imminent rush hour traffic, I handed him over."

Finally, she wrote, "14 years.

"My longest relationship.

My only experience of maternal love.

My constant companion.

My best friend.

Duck."

RIP, Duck. We could all use a friend like you.