Whilst funny, and the photos cute, surely we're past this?

"Annual leave? Sure mate, when you’re fired", yeah or when you're unemployed from burnout and a lack of balance.

It is well understood that workaholics don't necessarily deliver the best results (http://37signals.com/svn/posts/902-fire-the-workaholics/).

"I'm sick is another way of saying I don't like making sales" - that attitude drives people to not take leave when required. Taking one day off early in a bug can stomp it on its ugly head, but soldering on like a hero can end up knocking you out of action for a week.

I know I'd far rather have my sales person off for one day than a whole week.