So for the past week I've been playing poker with a guy named Juan 8 handed full ring $1/$2 and $1/$3. What Juan does is he never raises pre flop but will call a raise. Juan's main strategy is on the flop whether he has the nuts or total air he will always bet $6, then on the turn again whether he has air or the nuts he will bet $12 and on the river whether he has air or the nuts he will bet $18. This past week I've been playing with him and I'm making so many mistakes, I'll call him down with A high when he has the nuts and fold my middle pair when he has absolute air. I never know what he has and it's really tough for me to get a read on him because he bets the same amount everytime.

Have you tried raising his predictable bets at all? Obviously when you have something good (TPTK+). Have you tried folding to his predictable bets at all, when you have nothing?