People who lose a pet often grieve while apologising for grieving. They have usually already heard, or told themselves, that it is silly to be this upset. The most useful thing a message can do is disagree with that.
Use the animal’s name
“I am so sorry about Rosie” rather than “sorry about your dog”. Pets have names and their people have said those names out loud hundreds of times a day for a decade. Using it says you saw the animal as a specific creature, not a category.
Say the grief is reasonable
One line does it. “That is a proper loss and I am so sorry.” This is the sentence people are waiting for, because they have been braced for someone to imply otherwise.
Tell them something you remember
“I will never forget her losing her mind every single time the doorbell went.” Specific memories are the best thing you can send, and unlike with people, everyone has one — pets are relentlessly memorable.
What to avoid
“At least you gave her a good life” — true, and not helpful today. “Are you going to get another one?” — never in the first weeks. “It was just a dog” — the fastest way to end a friendship. And avoid “she is in a better place” unless you are certain they would find it comforting.
If they had to have the animal put down
This is where guilt lives, and it is worth addressing directly. “You made the kind decision, even though it was the harder one for you.” People replay that appointment for months. Say it plainly and say it early.
For children
Be concrete and avoid euphemism. “Put to sleep” confuses young children about sleeping. It is better to say the animal died, that it did not hurt, and that being sad about it is exactly right.
Drafting it
TextAI’s Condolence text tool covers pet loss as well as human bereavement. Give it the animal’s name and one detail, and it drafts something that treats the loss seriously.
