Paul Swinder has posted a nice collection of jokes about SharePoint, although you could probably insert your enterprise solution of choice instead of SharePoint.
Some of my favourites
Light travels faster than sound. This is why some SharePoint consultants appear bright until you hear them speak.
I always take SharePoint with a grain of salt, …plus a slice of lemon, …and a shot of tequila.
With sufficient thrust and an open window, SharePoint servers fly just fine.