It's the end of the summer term at the prestigious univercity of someplace, and the heads of the 4 largest departments (Chemistry, Physics, Engineering and Statistical mathematics) are called to report to the board of studies. They're ushered into a fancy waiting room, filled with all the items the university likes to show off to prestigious visitors, while they wait to be called through to see the board. The room really is a bit showee, it even has a minibar! It's a really warm, stuffy day. The Statistician opens the minibar to see if there's anything to drink. "Empty", he says, "typical...".
They're talking quietly amongst themselves when, all of a sudden, the newspaper box (filled with broadsheets for their guests to read) suddenly bursts into flames. The Physicist crys out, pointing at a vintage telescope, "The sun must have been focussed down that telescope and caused the papers to catch fire!"
"Quick, get help!" another exclaims.
Peeking out the door and looking down the corridor, they see it's deserted.
"Well what about a fire extinguisher?"
They look around the room and discover a very discerning looking tapestry hanging from a hook saying "fire extinguisher, please do not remove". Looking back at the fire, they see it's got a good hold of the papers. Then the engineer stands out, triumphantly, and says, "Right chaps, I guess that means it's down to us! We have to save this fancy smancy room for the good of the university!". They all muse for a second.
"OK, ok, how about... uhm...", the Chemist starts, "What if we cover it up and cut off the oxygen? That should put it out!"
"Ooh that's a good idea", continues the Physicist, "how about if we cover it up AND stuff it in the minibar - cooling it down past the point of combustion will stop it igniting again when we take the cover back off!"
"Wait, wait, if we can pick it up, why don't we just carry it outside?", the Engineer points out, "or better yet, open a window and throw it out!"
"No, no, no, with the warm weather the grass might catch fire and... wait, oh my god, what is he doing!!", the Chemist shrieks pointing at the Statistician, who, while they have been discussing what to do, has been scurrying around the room setting fire to tapestries, original copies of the consitution, the missing link, etc. They all scream in unison, "Stop, what the hell are you doing!!!"
The Statistician looks around calmly and says, "What?? I'm trying to get an adequate sample size?"