I have some dreams where something will happen and my mind will instantly rationalize that such a thing is not possible (for instance, having a dream where my computer was downloading a virus when the location I was staying in had 0 internet connection at that time). Usually after this happens my dream will come to a brief stop and I can either control it from there, let it continue as it was (but directing it a bit more consciously) or I go straight to a different dream as if I had just fallen asleep again.
I've done this 4 times this week which is pretty unusual for me.