Thirsty? Ask for a sip of someone else's drink. Forgot something in the woods? Cut your losses. Hear a strange noise in the basement? Pretend you don't. Whatever you do, just don't announce a quick detour from your group or it'll be your swan song. The "I'll be right back" trope has become such a horror flick death scene precursor that viewers almost find themselves rooting for the masked assailant to punish the never-to-returnee. No, you won't be right back. You'll be bloody and hanging from the garage door's doggy hole.