Sometimes it is a fine line between humour and sadness. I will laugh if someone does something stupid and gets hurt. Can't help it.
It isn't funny if it's a kid though, or an animal, they are innocent.

I do have a poker face but i have a horrible dark sense o humour and it has escaped in the past.

Just that one time when someone suggested we take the funeral procession through the Taco Bell drive-thru. 🌮 🌮

I laugh at the most inappropriate things at the most inappropriate times!

I have a funny natural laugh to begin with, it sounds as an exaggerated villainous laugh

More inappropriate looks, I squint when not wearing my glasses and also have 0 poker face

Oh all the time. Im a walking HR violation

They attack that look in your eye before the laugh can even manifest itself.