No wor, cannot eat, same as question 1
Main point is "who is responsible to pay and is it fair or not?"
You cannot see or you don't want to eat East is not an argument, its treated as "miss - error"
Rules are to avoid you "deliberately pick" someone to pay, so simply do not allow you to eat
This rule is generally used, its not about how many fan, the main concern is "fair", so also apply to friends (even important)
Same round, he can pon South (looking for more fan) "but cannot eat", if he pon South, it starts another round, then of course
he can eat East or whatever he changed to call