You ever get one of those notices from the water company that suggest boiling water before drinking due to contamination?  This is a letter to a newspaper Leno read on the Tonight Show during this week's "Headlines" segment.

"This is in regard to the Boil Water Notice for the City of Inverness.  I boiled the water as instructed before I drank it, and then I had to be rushed to the hospital room for scalded throat and blistering tongue.  They should have cautioned me to let the water cool."

Duh!  Natural selection missed one!