What should be done about an employee who is not doing a fair share of the work?

He or she, should be given a stern warning and if they don’t do it after the warning, fire them

You can drink laxative, or  do this exercise when you are sitting in the bathroom on the toilet. to relieve  constipation  fast or in about 1 minute, pinch your nose after your usual exhalation. start holding your breath. but do not mouth breath during this just hold your breath. 

Yeah u should that's the right thing