50:50 v/v propylene glycol to vegetable glycerin) with or without nicotine (100% dose has 36 mg/ml (or 222 mM) of nicotine)
How to Quit Smoking Now that we identified what happens to your body when you quit smoking, you might need some guidance on how to quit smoking
Neuropsychopharmacology 39:25942600 Gallinat J, Lang UE, Jacobsen LK, Bajbouj M, Kalus P, von Haebler D, Seifert F, Schubert F (2007) Abnormal hippocampal neurochemistry in smokers: evidence from proton magnetic resonance spectroscopy at 3 T
"Repairing Broken Pottery - Before attempting to repair pottery, it is essential that all the broken surfaces should be thoroughly cleaned..."
I don't recommend this technique on brand name pipes, as I am sure that your sales rep would have heart attack on his next visit
Like bro, it can also be used as an expression of surprise