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 told my friend "before I die I want my last words to be 'I left a million dollars under the." I said "One minute, I have to die first." He said "oh, okay. How long will that take?" I replied "not really sure.