Ah, this happens too (how many times, I guess ;D), actually it happens when I hold back myself and not answering it. When the teacher says '-----' then I'll go "Aaah!" inside my heart. But yeah, those kind of people do exist~

My version: M-san and B-san finally realized, that they didn't need boat anymore to get to Okinawa. Since they were in the ocean already, why not swimming then XDD *failure*

At least your skit sounds much more better with my M-role which I had this morning anddd, didn't go as expectations.