I don't think it's so much a strategy as one player relaxing a tiny bit and the other getting fired up. Certainly happens quite often though. I think Andy broke back instantly in all of his first three matches in Melbourne, and he got broken a fair few times in those games.
Yes, I guess you could say that. The reason why I say it's a good strategy is because not often you'd see players get all fired up after getting broken. It's Andy whom I've seen it doing more often than not and that's because he's aware of the fact that his opponent might be a bit vulnerable holding his own serve. Most players tend to duel on the fact that they have just got broken and tend to digress.