The hard part on the subway is that you have, let's say, eight hours, but you have to hit these deadlines. From here to here, you can use this part. From this time to this time, you can use that part, and you have to hit them and it gets very stressful.
There's nothing like an opening night or like the curtain going up and having a full house, but also having weeks and weeks to work with your director and cast members and try to crack the play. It's great.