It's a nice day at the university, when members of the teaching staff, a physicist, a law professor, a political science professor, a chemist, and a statistician walk into an office to discover the trash can is on fire! The political science professor says: "Don't worry! I'll take care of everything!" and proceeds to exit the room.
The physicist announces "We must put the garbage can in the fridge so that the temperature will be below the ignition temperature and therefore put itself out!"
The chemist replies: "No, we must cover the garbage can so that the fire consumes all of the oxygen and, in the absence of reactants, can no longer continue!"
The law professor declares: "Please stop blaming the victim, you have yet to prove the can is indeed on fire!"
Meanwhile, the three turn around to find that the statistician is running around the room setting everything else on fire!
"What the heck are you doing??" they scream at him. "Getting a proper sample size!"