I find myself in these situations often in the 5NL and 10NL games I play. I want to extract value from maniacs but it's difficult when they can show up with any two. Maniac in question had a small sample size, 35 hands, but VPIP 58/PFR 10. I want to say he's playing a lot of hands but only raising pre with the best of them, but that's not the case. Hand before this saw him raising 39o and calling on the river with air.

PokerStars - $0.10 NL (6 max) - Holdem - 5 players
Hand converted by PokerTracker 4: http://www.pokertracker.com

BTN: 100 BB
Hero (SB): 127.5 BB
BB: 68.5 BB
UTG: 126.3 BB
CO: 104.3 BB

Hero posts SB 0.5 BB, BB posts BB 1 BB

Pre Flop: (pot: 1.5 BB) Hero has Js Jc
fold, fold, fold, Hero raises to 3 BB, BB calls 2 BB

Flop : (6 BB, 2 players) 5h 8d Ts
Hero bets 2.9 BB, BB raises to 8.7 BB, Hero calls 5.8 BB

Turn : (23.4 BB, 2 players) 4s
Hero checks, BB bets 11.2 BB, Hero calls 11.2 BB

River : (45.8 BB, 2 players) 7d
Hero checks, BB checks

Hero shows Js Jc (One Pair, Jacks)
(Pre 71%, Flop 80%, Turn 89%)

BB mucks Td Ah (One Pair, Tens)
(Pre 29%, Flop 20%, Turn 11%)

Hero wins 43.7 BB