[emptyshell]

The bet at the end is not a big deal, obviously. Maybe 10% of the time he folds his nut low draw + 2 pair to it. A larger percent of the time he'll check-behind on the river with two pair, saving you $100. The likelihood of such a small bluff into such a large pot is probably another 10%. I have won pots with these types of post-oak bluffs when I've been betting low draw + middle pair all the way to the river and miss. All in all, you probably gain more by checking.