Guy probably works, effectively, for 4 hoours a day, and then puts 16 into Jira.

On another note, I work 10 a day give or take, and that's because I can then take a few days off anyway. And I love my work and can afford it. Nobody pays me more than my hourly rate (if it is not a requested overtime in case of a night release [2x hourly] or being on emergency in case something breaks [0.5 hourly, but paid even if no emergency is raised, but have to be on call, so 8 hours of undisturbed sleep is like working 4 hours]). I do this on my own volition.