Why not? Anything can be funny...as long as it's happening to someone else.
Because there is a child who needs to live with the guilt of accidentally killing someone. That's a huge burden to bear...not something I would be able to deal with, let alone a little kid.
There is an old woman who died. Maybe she's a grandmother. Maybe she had family, kids who cared about her a lot. So they would be extremely sad about her death. But you would laugh about it, because it doesn't affect you. Right.
My grandfather is very sick now, and if I knew that someone thought his sickness was funny...well, that just makes me sick. You don't have to care, but taking pleasure in another's misfortunes isn't acceptable.
I truly hope that you're just trolling and don't believe this shit that you're saying in real life.