Safety First!

"And that's where he must have slept!"
"Yes, it was. How did you know?"
"It's the one I'd have chosen, close to the fire extinguisher. In case of a fire, I could have given the alarm and saved all the other orphans."
"We've had only one fire in here at St. Charlotte's. Vince Benedict started it,we like to think by accident."
(from the 1988 movie "Twins" with Arnold Schwarzenegger and Danny DeVito)

That's what first came to my mind when I saw this guy bringing a brand new fire extinguisher. Then he brought the second one, and I thought one is good, but two are not enough. And guess what... he brought the third one! When there's a fire, you cannot just go there and extinguish it. No, that would be too easy. You've got to think first! Is it a light fire and can be put out rather easily? Then you should use the extinguisher on the left. It's filled with CO₂ and won't make too big a damage. You should be careful when using it on people or in a closed room, though, because there's a chance they (or you!) might suffocate. So, if suffocation is not an option, you might just as well use the second one, which is filled with water. It's a little more powerful, but you still shouldn't use it on people, because there's a substance in the water that makes it less adhesive. For aggressive fires, you should use the third. It contains foam that will not only put out any flame it touches, it will also destroy every piece of computer hardware in the room. And don't even think about what it will do to the skin of a burning person.
All things considered, it's safe to say that burning humans are a problem.

I hope in hundred years, people will laugh about how in the old days you needed three extinguishers to put out one fire!

***

When I came back to the office later, I saw that they placed a huge flower pot in front of all three fire extinguishers. Unless it's an asbestos tree, one might think that wasn't such a bright idea...