sweenyitis
Condition when someone feels the urge to leave work to go out for a smoke at least 20 times per shift. The person will also be lazy, have no consideration for work colleagues and usually be a hindrance. There is no cure for severe sweenyitis but can be cured if caught at a very early stage.
I think I have sweenyitis. I just can't resist standing out in the smokehut and leaving my work colleagues to do all the work.