Our mystery guest holding up the desk with their wooden tennis rcqt Did you know Captain Jack Sparrow plays tennis? Resident Head Pro Billy Mendler as Captain Jack Sparrow. Very scary don’t you think? Here are some pics of life on Halloween at BTC. Who says we don’t get trick or’ treaters? Who can identify our mystery guest in the lounge, demanding candy and tennis balls for ransom? A free can of tennis balls are in store for the first correct winner. All in all, a typical Halloween at BTC!