An Offall-y Big Adventure Part 1 - Kidneys

{This adventure is in two parts, documenting my experiences with types of offal I'd never cooked before.  We start with kidneys, then move onto brains.  Let's go!}

The blonde behind the counter is grumpy.  Kidneys were clearly an 'out-the-back' item, not in easy reach within the gleaming display cases of steaks, fillets and other more familiar, muscle-centric parts.
"How many do you want?" she asks curtly.
"Umm... 250 grams?" I reply.
"How many would that be?"
"I'm not sure... um... how big are they? They're lambs' kidneys, right?"
She nods, making a vague motion with her hands indicating they're sized anywhere between a 20-cent coin and a char siu bao*.
"I'll just, umm... just a good handful, thanks".

She yells something to a chap out the back, he yells something back.  I stand quietly, waiting for the kidneys, trying not to die of awkwardness.  Eventually, a large brown parcel is proffered to me, feeling a lot more like 500 grams than the asked-for 250 grams.  The price is $2.40.  I hand over the money and skulk away, feeling confused and a little foolish.