flatulence
Why did Elvis Presley die sitting on the toilet? Whose flatulence is worse, men's or women's? How many pints of saliva do we produce every day? What causes morning breath? What three foods are most likely to kill someone? Do prisoners really smuggle stuff in their rectums?
OK, let's be honest. We all fart. But what happens when it occurs nine times a day in an office shared by other coworkers?