I have been thinking of getting another hamster, but the Fat One reminded me that they erm..don't have very long lives, and the traumatic experience would happen again not too far in the future. So, get a dog, she suggested. They last longer, at least ten years.
I say, if one really wants to escape the sadness of losing a pet, get a tortoise. Or an elephant. They are more likely to outlive you.
The regrettable truth is, nothing is permanent on this side of heaven, and we are all cursed to suffer big or small bereavements one day. There isn't any point trying to avoid the inevitable, we just have to learn when it is time to let go. There is a season for everything. A time to be born and a time to die...a time to weep and a time to laugh (Ecclesiastes 3).
Sometimes I think that our pet ownership gives us a glimpse into Eden, to a time before the Fall, when Man was given dominion over the earth. I suppose it is a little like having all the animals, lions and all, as our pets.
Thank God that we can look forward to a time in our redeemed future when the wolf will live with the lamb...and the young child put his hand into the viper’s nest. They will neither harm nor destroy on all (God's) holy mountain, for the earth will be full of the knowledge of the Lord as the waters cover the sea (Isaiah 11).
Only then would we be free to love without the pain of parting anymore.