Related:

• Be careful with water - it's full of Hydrogen and Oxygen!
• I'm only here for the oxygen.
• No smoking--Oxygen in use
• There's antimony arsenic aluminum selenium and hydrogen and oxygen and nitrogen and rhenium and nickel neodymium neptunium germanium and iron americium ruthenium uranium europium zirconium lutetium vanadium and lanthanum and osmium and astatine and radium and gold and protactinium and indium and gallium and iodine and thorium and thulium and thallium There's yttrium ytterbium actinium rubidium and boron gadolinium niobium iridium and strontium and silicon and silver samarium and bismuth bromine lithium beryllium and barium Isn't that interesting?
  I knew you would. I hope you're all taking notes because there's gonna be a short quiz next period....
• Been short on oxygen one time too many.
• Bright as an acetylene torch -- without an oxygen supply.
• Oxygen's for losers! -- Confidence in Red Dwarf 'Confidence and Paranoia'
• Oxygen is a very toxic gas and an extreme fire hazard.
  It is fatal in concentrations of as little as 0.000001 p....
• The two most common things in the universe are hydrogen and stupidity.