table is normally very loose passive, this hand is weird.
i have A
8 in the big blind.
..., MP3 raises, CO calls, i call.
MP3 is a rockish TAG, about 16% / 5% / 3.70.
(12 SB / 3 SB) J
8 
5
i bet, CO folds, i call.
(6 BB / 3 BB) 8
i check, MP bets, i call.
i'm betting a J river (probably folding to a raise) and a 5 river (calling a raise), checkraising everything else... *maybe* check/calling an A/K/Q river.
in case my reasoning isn't obvious, it's because i am almost certain he has AA/KK/QQ, and he will keep betting thinking he has the best two pair if i don't checkraise on the turn, but he *might* fold to a turn checkraise (honestly not sure if he does, and if he doesn't, it makes no difference except i let him draw to like two outs cheaper).
good/bad/indifferent?
aseem