I should explain some of these turn checks that I do, just in case I may have done it here. In fact I may be 85% sure I did. When I complete a draw like this, an obvious one against an aggro fish, I will click auto check and when they check(if they check) it checks so fast behind them that they think I had check/fold option checked. A lot of times I can get away with either them pushing, like this, or me looking like I bluff at the pot and they will come over me many times. It seems to work at this level, since there are so many non thinking aggros at the stake.