The term for the strategy of waiting until the foodservice employee puts the first portion of
meat on your
sandwich/burrito/whatever to ask for double
meat. That way, the size of the first portion isn't compromised by the knowledge that a second portion is coming, and sets a precedent portion size for the second portion, avoiding any size discrepancy between first and second portions. Particularly effective at Chipotle.
Employee - "What kind of
meat, sir?"
Fat
Guy - "Chicken, my man."
E - *Scoop*
E - "Any vegetables?"
FG - "Actually, can I get double chicken?"
E - "Godfuckingdammit okay."
FG - "Fat
Guy Strategy wins again."