"Jacque Legg" -- Robbie, apparently you don't have a dog !

At piano tuning & repair school, any dubious technique was casually
referred to as being a "Jack-leg" repair, referring to the act
frequently performed by male dogs with weak bladders ... ;)

Bryan S. Cather

 [ :))  Very good, Bryan!   A friend found in an old, old dictionary:
 [
 [ jackleg - a blackleg (U.S. slang)
 [ blackleg -
 [  1. symptomatic anthrax (a disease of cattle)
 [  2. a swindler, esp. a dishonest gambler [ but not a piano tech ;-)
 [  3. a strike breaker -- so called in opprobrium
 [
 [ Any others?  It sounds British ...  -- Robbie