Musings: It can't help to look

Do you ever type or utter something just as your brain skips a beat, then realize your word choice turned out to be the opposite of what you intended? I just wrote MG "It can't help to look" before I saw help where I meant hurt. It's not a Freudian slip either, because my mind often reaches into a grab bag of related vocabulary then, while I'm looking the other way, picks out a word other than what I intended. This phenomenon may also be aided by an injudicious lack of sleep.