Why am I not sadder?

[fangwing]

My grandfather died last night.  He was 88 years old, and had been in really poor health for the last year or so, so it didn't really come as much of a surprise.  I hadn't seen him, face to face, in nearly 10 years, and I only talked to him over the phone for a minute or so each year on Christmas.

Now I feel guilty that I was more emotionally affected by the death of my dog than the death of my dad's dad.  What's wrong with me?