I did this the other weekend.except replace "monsters" with "zombies." Someone was shooting off and I thought, "What if those are rifles? What if it's zombies?" This is why I choose not to watch scary movies! :) I've got "scary" covered.
I should be dead about a million times over, for all the chain letters and emails and texts that I've received and NEVER forwarded one. So I find this HILARIOUS! They are like Blackmail, Guilt, Fear letters.