The fastest thing in the world?

[Chris558]

Three gentlemen were flying 1st Class on the Concorde when one committed that they themselves were, at the moment, the fastest things on earth. Another stated that, in fact, it was light that was the fastest thing on earth. At this statement, the third man informed the others that he was a renowned scientist who had just published proof that the human brain signals travel faster than light. The pilot interrupted them, appologized for listening in and added that it was really the sphincter muscle that was the fastest. "What?' they asked. The pilot responded that on his last flight the plane was traveling at top speed when it was suddenly struck by lightening and that before he could even think about it - he had cr@pped his pants.