Colena was telling me about her buddy and *his* girlfriend. 
They were working on a vehicle and using gasoline to clean the 
parts with.  It was a warm day and the gas was sitting in a 
coffee can in the sun and eventually evaporated. Judi 
demanded to know what happened to it. When they told her 
what happened, she asked what eveporation was. So they told 
her it got hot in the sun & made it go away.... Judi's reply... 
"If you put it in the shade, will it come back?"