I once sat on a knife.
Yikes, what would make you want to sit on a knife?
Let's just say I was bored and wanted to find out what it felt like.
You shouldn't ever sit on a knife for any reason. You could seriously hurt yourself doing that.
I sat on it for about seconds. I'm still alive.
While it was only a few seconds, you should still avoid sitting on knives. You could truly get hurt and you should be more kind to yourself.