As others have said, the script need not stop. Practice recognising universal dream signs, such as the incorrect functionality of electrical devices. This should naturally cause awareness in dreams when such things occur. To add support to this, why are you automatically scared of those dogs in the dream? You are scared because you have been conditioned somewhere in life to be scared at their presence. That is, a particular stimulus has conditioned a response in you, and this follows into the dreamworld. Condition a reaction to dream signs, personal or universal, so that you automatically react in a beneficial way.

Light switches tend to have no effect in dreams. If you can, then in waking life remove the bulb in your room. Switch the light switch on, and observe as nothing happens. Immediately after, do a reality check. Repeat over and over, so this becomes a conditioned reaction to the presence of that anomaly. This will then automatically occur in the dreamworld.