For me, I make them as much a part of the grieving process as possible. I talk about Rainbow Bridge A LOT. I talk about the animals who have passed (and whom they have SEEN dead so they understand I'm talking about animals no longer here).
When I finally had to take Foxy up to Dr. Bailey for his final journey to Rainbow Bridge, Billy went WITH me. I talked to the Fox the entire way, asking him to go "find" Muffin, Prissy and all my old friends.
Billy wasn't actually in the room with us, but I told him to "say bye to Foxy 'cos he's going over Rainbow Bridge" (YES, I did too say that). Billy knows Foxy went in that room with Pink Lamb and his bed.
Just to add -- I asked Dr. Bailey to give Foxy valium first and then the shot of the pink stuff (as we'd done previously) and I held my old boy. He was completely and utterly asleep and after a 3-4 minutes Dr. Bailey put the needle of the pink stuff into the cathether (he'd been sick, the catheter was already in previously in this case).
4Hand -- I am as serious as I can be. The INSTANT that pink stuff touched that catheter (he hadn't even finished injecting it) Foxy's 4 feet began to move. By the time the pink stuff cleared the catheter, all 4 of his feets/toes were ... there is no other word for this ... RUNNING.
This is a dog who had been completely and utterly UNABLE to even stand for a week -- he was far too weak to do anything.
The vet - not an inexperienced man -- just said "O ... M ... G ... Mrs. Kennedy, I'm sorry, but do you SEE that? He's not distressed -- look at his face. He's running TO something? He IS ... running TO ... not from."
I knew what Foxy was seeing – all his friends. The vet was really quite freaked – he said to me "Mrs. Kennedy I have never, in all my years, seen what we just saw. If I weren’t already the type of person who believed in something beyond this life, I would seriously have to re-consider. But HE KNEW where he was going ... that wasn’t mere muscle spasming. You DO see that occasionally ... those weren’t random spasms – he was going somewhere specific. Wow."
My point isn’t to try to convince anyone of anything – but I think they have as much cognizance as you allow them to have.
When I got back with Billy he was ready to go. But we brought him in where Foxy was and Billy was like "Let’s go - Fox isn’t here anymore".
I have on many occasions in the past (absolutely any time possible) had my dogs always view the deceased. And without fail, they go, they sniff and they simply accept that the essence of their friend isn’t there anymore.
But I’ve NEVER had a problem with dogs "looking" for the other. They *know*. I prepare them, and then let them see the fact and it simply allows them to then grieve.
They DO grieve. Billy DID grieve for Foxy. They were very close (Foxy *chose* Billy – without a doubt, we adopted Billy because Foxy indicated he was THE one.). But it wasn’t an inconsolable grief. Billy knew Foxy was FINE with it – he was ready. Because Billy was ok with it, Luna was.
IN honesty, I wouldn’t ever do it any differently. I think it allows them a sense of closure. They *Know* where the other animal went – they smell death on a dog far far before WE know it’s time. But they can also tell, because of their sense of smell, what the dog’s emotional state was prior to death.
If it was a messy traumatic death? I’d probably evaluate the whole thing differently.
But even when we lost Pollyanna (a little bitch puppy we took who had been horribly abused) -- she died after 3 months of valiantly trying to overcome her injuries, but she died of a stroke from a leftover bloodclot apparently – they knew she was gone. They never had to think we just "left" her somewhere.