Yea I apologise, I'm not sure why the size thing bugs me as much as it does.
To their credit the baristas here seem to just flow with the go and translate the sizes without starting an argument. I just know that if I worked there I would be found curled up in a ball murmuring "small is tall, medium is grande, large is venti" over and over. I'm just weird like that.
As for the size thing, its psychological, when offered 3 options, small medium and large, the medium and large are more popular. It's nothing to do with the physical size of the coffee. That's my recollection anyway, I'll try and find something to back it up.
