Not at all weird. I had to euthanize two of my ryukins. They both had developed swim bladder problems (all too common with goldfish, especially ryukins) and I cried my eyes out. It was the right thing to do because they were really suffering, but for me it wasn't any different than losing my dog. They were both huge - 9.5 and 8.5 inches, male and female, and I loved them dearly. The big male had a habit of swimming into my hand when I was cleaning the tank. I would gently shoo him away and he'd swim right back. He was the most hand tame fish I ever had. A very special guy.