A more debateable triple check line

[aholthaus33]

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now here, I'm either folding the turn or the river, which has a lot to do with the fact that it's a 4 way pot, you have an ace and he doesn't care.

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It does seem like you are saying pretty clearly that you have a medium ace and he is still firing..........the fact that he triple bluffed u earlier makes this even easier to fold I should think? The thought being he either has to be super bad to try again or really good.
I probably just throw em in on turn and am not too upset about it.