Re: Header pic
He would place a beaker of concentrated ammonia and a beaker of concentrated hydrochloric acid in each of a pair of old boots; place the boots next to each other behind the front desk, resulting in a nice plume of "smoke" where the two invisible vapours reacted
Love it. By the way, the fun bit about that smoke is that it is actually edible if you crystallise it out.
Biting the hand that feeds IT
