Yeah, kinda.
I grew up with my family dog. I must have been around 3-4 (there should be photos, I ought to look it up). He was just always there. I did consider him family. My parents and grandparents probably didn't cause they've had other dogs before.
And he died when I was 16-17ish. He was really old, almost blind and was getting thin. During his last months I went out of my way to spend extra time with him. But my family may have disposed of him when I was in a hiking trip. I don't know what happened cause I didn't have the courage to ask. They said he "just died" and I didn't press it any further. But it really made me so sad and angry, I never even asked where he's buried. If he is buried anywhere. Now the only people who could have known are dead too.
I've never fully gotten over it.
I'll never really get over it, how could I?