I Laugh At Things I Should Not Be Laughing At

So my Father's going through some sort of depressed phase as he approaches 60. And my mother sat me down to have a conversation about it, she mentioned that she suggested for him to travel to his hometown where his family is. But he said he couldn't. She said "Why?", and he exclaims "Because everyone's dead!!" and at that point I'm laughing so hard tears are streaming down my face, and I knew she was serious but that made it even funnier so I laughed even harder and fell out my chair. It's so dramatic, it's hilarious. I'm still laughing. I don't think I've ever laughed so much in my life.