A local coffee shop charges $3.35 for a medium latte with two shots of espresso, and $3.70 for a large latte with three shots of espresso. Additional shots of espresso cost $0.65. I normally just order a medium latte with an extra shot because I know that it's not worth the $0.30 savings to try to get a large latte without the full load of steamed milk.

Today I was feeling frisky, so I attempted to order a "large latte in a medium cup." The immediate response was "that's impossible." I was reminded of Carol Beer.

After some back and forth, one of the more experienced baristas offered some assistance and said "just order a large latte with room."

That almost worked... tomorrow I'm going to order "a large latte with room with room with room with room with room." Hopefully they can hit the "with room" button enough to simulate my paying an extra $0.30 for a negative amount of milk.