If I have the choice between an experienced, safe, relaxed cow-orker who broke the bottle-to-throttle rule by 30 minures because he accidentally swallowed some mouthwash, before getting 8 hours of good sleep, and a “sober”, yet underpaid, stressed guy on a crappy roster, who falls asleep because he's dead tired, and can't focus because he's worried how he'll pay his dentist... hmmm... difficult choice.