You and an old friend catch up at a restaurant. When the bill comes, how do you make sure the poor waiter takes your card?
I usually whisper, "I'll flip every table in this joint if you don't take my card, including the one with that child at it", and while it has a 100% success rate, I can't help but feel terrible about it, later. What are some alternatives?
If this is a game you really want to play then just keep raising your voice while insisting. Your voice can always go louder. I learned this from my blind grandmother who absolutely always paid.