Working 7 days a week for a total of some 60+ hours a week between 2 customer facing busy jobs for 9 months solid. With just 1 day off in that entire period of time, which was Christmas Day.

I also worked an 18 hour shift on the end of a week of 10 - 12 hour shifts. The shift finished at 2:45am. I was due back in work at 08:00 the next day. I had a 1.5 hour journey home to make, I then has to impromptually meet the head of Nintendo Europe. I was an absolute wreck propped up on Red Bull.