Egon Spengler:
There's something very important I forgot to tell you.
Egon Spengler:
Don't cross the streams.
Egon Spengler:
It would be bad.
Peter Venkman:
I'm fuzzy on the whole 'good/bad' thing, what do you mean bad?
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.
Ray Stantz:
Total protonic reversal.
Peter Venkman:
All right, that's bad. Ok, all right, important safety tip, thanks Egon.