When someone asks you "if you are a god?", you say, "Yes!"

Dr. Egon Spengler: There's something very important I forgot to tell you.
Dr. Peter Venkman: What?
Dr. Egon Spengler: Don't cross the streams.
Dr. Peter Venkman: Why?
Dr. Egon Spengler: It would be bad.
Dr. Peter Venkman: I'm fuzzy on the whole good/bad thing. What do you mean "bad"?
Dr. Egon Spengler: Try to imagine all life as you know it stopping instantaneously, and every molecule in your body exploding at the speed of light.
Dr. Raymond Stantz: Total protonic reversal!
Dr. Peter Venkman: Right, that's bad. Okay, alright, important safety tip, thanks Egon.