Blah blah blah an unnecessarily complex setup story involving somebody with free fluid in the peritoneal space, which ends with my registrar finding me lying in the patient's cubicle, my only visible movement being the feeble drumming of one of my fingers upon the floor.
"What are you doing?" shrieked my registrar, "I asked you do do an ascitic tap!"
"Oh!" said I, "I thought you said an asthenic tap."