Interesting/Fun Hypothetical Situation

[Steve]

well, it isn't really THAT stupid a question. The point of it is, at what M would you actually be happy getting a coin flip. Obviously if your M is 1, and the blinds are coming up, you'd be happy to get a coin flip, because otherwise you're gonna hit the big blind and probably be on the bad end of a 60/40 or worse.

Then what about M=3. If you don't take the coin flip now, you'll lose 1/3 of your stack to the blinds.

So at what M do you accept his offer?