So apparently I'm missing the joke, maybe because I don't play on Goko so am not familiar with the interface... it's not like you can actually buy a Witch with $4, if there's no Baker. So it seems that the only thing saying "now i'll use my coin token" would do it make your opponent double-check, and then response "what do you mean? There's no Baker on the board." Is the joke just that you cause your opponent to have to double-check the board, or am I missing something? If the former, then surely you could also just say "Guess I'll buy chapel" on a board with no Chapel for the same effect...