Brian Hirch, sales manager for Protect A Bed, wears a bed bug hard hat during the first North American Bed Bug Summit today in Rosemont, Ill. The event's sponsor, BedBug Central, says the two-day summit will host 14 of the nation’s leading entomologist and bed bug specialists, along with a gathering of bed bug-industry related vendors. (AP Photo/M. Spencer Green)

Question: You've heard the old expression: Good night, sleep tight; don't let the bed bugs bite." Have you ever been bitten by a bed bug?