...must be exceedingly difficult - they are just so dashed hard to pin down. That's the thing about parameters - they seem to vary so much, and so often. Maybe you have a machine that sets them for you...anyway I'm enthralled as to which ones you apply your artistic talents to Mr Arrogant... Temperature? Pressure? Levels of incompetency among people who consider themselves as learned and (god forbid) as ESL "instructors"?...

...or perhaps you prefer the good old "x" and "y" - you know, the Axis Brothers. No doubt they are popular subjects at whatever Institute of Abstract Art employs you!