More on Counter-jumper from Infoplease:

• Counter-jumper - Counter-jumper A draper's assistant, who jumps over the counter to go from one part of the shop ...
• Jumper - Jumper The longest jumper on record was Phayllos, who is accredited with jumping 55 feet. Half that ...
• Dictionary of Phrase and Fable: C - Definitions, origins, and illustrative excerpts for words, phases, and literary allusions starting with "C"