I had almost forgotten about this one...
No one dared me, but it was rather daring nonetheless.

I was working in an aging factory that produced polymer- specifically nylon and polyester- and was on the second floor of one building, and often had to go find my boss on the second floor of the next building. The plant was built in the 1940s or so and had been modified in odd ways- and in this case, the buildings were connected by a walkway with a door at either end.

At my end of the walkway was the lab I worked in, which had to be kept at a precise 72 F and 50% humidity at all times (Standard Temperature and Humidity as defined by ASTM and ISO). As the offices were not regulated like that and neither was the hallway, they kept the lab at a positive pressure- that is, they pumped in air so it pushed out the outside air. The result was that there was always a breeze along that corridor if you had the doors open.

One day something happened to one of the door closers- that thing up at the top that gently pulls the door closed and keeps it from slamming- so that now it had no resistance at all, so the door could slam.

And it did. Very loudly. Especially as it was in a hallway, so it sounded like a fucking cannon. And as the offices were mostly full of administration types who were typically female, it caused a fair amount of upset when it happened.

It had been like this for a few days, and we had generally gotten used to it and were careful about closing it ourselves to prevent the slam. But I was in a hurry and was moving quickly and pulled the door open against the pressure and ducked through.

BOOM!

Ever just get one of those insane urges?...

"I AM THOR!" I boomed in my most stentorian bellow. "BRING ME YOUR WOMEN TO QUENCH MY LOINS!"

There was a stairwell at the end of the hall. I made very good use of it.
( The Resident Loon Not a demographic. Do not measure., Fri 2 Nov 2007, 14:37, 2 replies)

I was working in an aging factory that produced polymer- specifically nylon and polyester
Clothes for Burtons?
( dan j the filthy bastard, Fri 2 Nov 2007, 14:39, closed)

No, actually, pellets and yarn for carpeting.
The pellets were shipped out in tanker trucks, and are injection molded into just about everything- the body of Black & Decker's electric drills, the fan on your car's radiator, baseball helmets and the like. The yarn was extruded and sent out on big fucking rolls to be woven into all kinds of carpeting.

The company in question is a huge multinational one that you will have heard of. Chances are pretty good that your thermostat in your home or office has their logo on it.
( The Resident Loon Not a demographic. Do not measure., Fri 2 Nov 2007, 14:44, closed)