Answer:
Are you speaking about the actors or the audience? If you are talking about the actors- never! It would be highly irresponsible to fall asleep at your job. If you are talking about the audience- I suppose you can fall asleep whenever, but it would be disrespectful to the actors (unless you are watching the film version).
Answer:
adverb
Explanation:
it is a adverb because you are describing an action
Electric Shocks aren't very common but it is possible that that will happen.
