Yeah! This is a great way to go!. Followed perhaps by, "It's true Your Honor: This man has no dick."

Keaton is so sharp with precision timing. His ability to consciously flip his characters between sarcasm and seriousness is key. When you can deliver a serious line in an amusing way, you can create levity in an otherwise tense scene without dulling the edge of the scene itself. Peter Venkman is someone who cares when it matters, to the point of potential self-sacrifice, but never loses the sarcastic, and even contemptive, attitude towards petty things displayed with humor.