Breathing through a moist rag can filter out the smoke. I don't think it needs to be urine. Just recently I read an article by a guy who was in the subway bombing in Russia, he peed on his hat and breathed through it.
How did this turn into a "drinking your own urine" discussion?
Here's something interesting(theoretical):
Say man were able to design a space ship that could tavel at the speed of light and a crew boarded the ship and started off straight away from the Earth into space. If they (spaceship) traveled for 20 years at light speed, turned around, and traveled 20 years back to Earth, the crew would have aged 40 years. But, due to the space/time continuum, the Earth would have aged 60 thousand years.
The term "quit Joshing me" refers to a man named Josh who tried to trick store owners into thinking his 5 cents coins were $5 coins...
Years ago, there was a silver 5 cent piece and a gold 5 dollar piece that looked exactly the same, the only difference was the metal they were made of. This guy Josh (I forget his last name) found that he could sprinkle a cheap amount of gold dust on the 5 cent pieces and pass tham off as 5 dollar pieces.
So the term "quit joshing me" refers to someone who tries to trick you.
The funny thing is, there are people who would gladly drink their own or anyone's urine. There's probably quite a few web sites devoted to this phenomenon. (I wouldn't know, and I don't want any links, please.)
An American nickle weighs exactly 5 grams, a bill (any denomination) weighs exactly 1 gram. Not sure if this is on purpose.
The number 13 on the back of a $1 bill: 13 steps on the pyramid 13 letters in "Annut Coeptis" 13 letters in " E. Pluribus Unum" 13 arrows in the eagle's foot 13 fig leaves in the other foot 13 stars above his head 13 stripes on the shield There might be more, sorry I don't remember.