Japanese and seafood, they go hand in hand.
To the Jap tourist defense:
Language barrier and they thought a whole crab is to be broken up and shared with other customers.
I wonder if they thought they were getting that foreign tourist treatment as $20 goes a long way? Our $20 USD in Thailand goes a long way.
To the defense of the restaurant:
They bought the whole crab out for them to see
Due to language barriers, it should be noted in writing to $20 per oz or gram and not $20 per crab
My take is that some restaurants will take advantage of unsuspected tourist who doesn't know any better. Like you are in thailand and a group of girls want to join your crew so they pulled on up and they started to buy drinks for themselves. It's Thailand, beers are cheap right? Well well, little do we know, these girls are hustlers and works for the restaurant. This is why it is best to get the price up front before you commit. Some culture like in my country, the fridge is just right there. You go pick out whatever you want to drink form it and order first and we will put everything on the bill for you at the end of the meal. Surprise mothereffer