[Grey Lady]

But I don't find Halloween humorous...

"I don't think it's possible to have a sense of tragedy without having a sense of humor"- Christopher Hitchens


Well, that is tragic...

 

[Grey Lady]

Years ago I was intrigued by why people laugh when they are frightened in a Haunted House, so I looked into it. It turns out that fear stimulates the hippocampus portion of the brain. This is related to emotion and short term memory. Short term - we KNOW we are in no danger; emotion - what the HELL is that!
the combination causes laughter.
BTW, the hippocampus is the first part of the brain to fall to Alzheimer's Disease. So, if you don't think Halloween is humorous, giit yerself checked out...,

Several of my actors have complained about customers who laugh all the way through, as if it's insulting to them.
I tell them two things, 1) many people respond to fear with laughter just as you said Wolfman. and 2) as long as they are enjoying themselves I don't care if they scream or laugh