8. Put the kids to bed first.

Learned from: Repossessed (1990)

Complex says: It’s one thing to perform an exorcism inside a pretty demon-controlled lady’s home, but while her kids are wide awake? Show some damn tact! Worst-case scenario: The exorcist’s methods prove futile and the children are filleted along with their parents. Another possibility is what happens in the horror spoof Repossessed; little Joey and Jane walk in on disturbed mommy humping the priest. Some fates are unquestionably worse than death.