My mate took me to this "hidden treasure" of a Chinese restaurant which occupied, oddly, an entire level of an NCP car park in Liverpools Chinatown. We were the only non Chinese in there and it was PACKED. we got served this delicacy too. I remember that they tasted end smelt like human feet...
I'll give most things a bash but the Japanese eat these crabs ( I forget the mame of them) that are covered in thick barnacles and whatnot. Blighters eat them like toffee apples and I couldn't even bite through the shell it was so hard. How they don't break every tooth in their heads is a minor...