That lobster thing sounds true to me.
Ayumi ate in "Newton Circus Food Court".
I don't know whether it's true or not, but I heard from my Singapore friends who eat there regularly that the hawkers like to charge the tourists much more than regular singaporeans would be charge. Well if you're a tourist in a new place, you wouldn't have care much of the price if it was a pretty popular place in Singapore. Furthermore, with Ayumi's wealth, would she even care much about how much it cost?