NL2 straight against a maniac with the board paired

[GengisKum]

Poker Stars - No Limit Hold'em Cash Game - $0.01/$0.02 Blinds - 6 Players - (LegoPoker Hand History Converter)

SB: $2.95
BB: $12.03
UTG: $5.02
MP: $6.14
Hero (CO): $4.70
BTN: $2.93

Reads: <font color="blue">Villain is 74/29/7, went to showdown 26% and won at showdown 58%.</font>

Preflop: Hero is dealt J Q (6 Players)
2 folds, <font color="red">Hero raises to $0.06</font>, 2 folds, BB calls $0.04

Flop: ($0.13) K[img]/images/graemlins/spade.gif[/img] 4 A[img]/images/graemlins/spade.gif[/img] (2 Players)
<font color="red">BB bets $0.08</font>, Hero calls $0.08

Turn: ($0.29) 4[img]/images/graemlins/heart.gif[/img] (2 Players)
BB checks, Hero checks

River: ($0.29) T (2 Players)
<font color="red">BB bets $0.30</font>, <font color="red">Hero raises to $1.00</font>, <font color="red">BB raises to $2.72</font>, Hero?

[Genz]

just call the overbet in the first place if the paired board troubles you. but that shows another weakness in the hand: your flop call. You don't have odds, there is a flush draw out there and you have to expect that villain bets again on the turn, wrecking your implied odds. So you can't expect to get payed off often enough when you hit your gutshot.
As played, it's an easy call on the river as he might play any A or K like that.