5nl weak fold to 1/3pot turn donk?

[sivadom]

Villain was 75/2/.3 over ~50 hands.

Poker Stars, $0.02/$0.05 NL Hold'em Cash Game, 6 Players
LegoPoker (http://www.legopoker.com)Hand History Converter (http://www.legopoker.com/hh)

MP: $4.13
CO: $14.02
BTN: $11.88
SB: $9.26
BB: $11.02
Hero (UTG): $8.44

Pre-Flop: A/images/graemlins/diamond.gif Q/images/graemlins/spade.gif dealt to Hero (UTG)
<font color="red">Hero raises to $0.20</font>, MP folds, CO calls $0.20, 2 folds, BB calls $0.15

Flop: ($0.62) 5/images/graemlins/heart.gif Q/images/graemlins/club.gif K/images/graemlins/diamond.gif (3 Players)
BB checks, <font color="red">Hero bets $0.40</font>, CO folds, BB calls $0.40

Turn: ($1.42) 9/images/graemlins/diamond.gif (2 Players)
<font color="red">BB bets $0.50</font>, Hero folds

[AFCBeer]

I guess JT fits the bill here but folding here is very weak. Its only a small bet so I imagine you could get this to a showdown fairly cheaply. What were you so afraid of?

[sivadom]

This guy was very passive (.3 AF as noted) so i put him on a K or better. This seems pessimistic in retrospect. If my read was right, I figured i was drawing to 5 outs at best, and i dont think I could get $3.50ish from him on the river if he did have a K, or worse get stacked by JT. Also, i dont think a raise folds any better hands (if he has any king he calls all day).

I guess my question really is: How do we narrow a station's range with a marginal made hand like this when donked into? I now think he could be doing this with a king, a worse queen, turned 2 pair, T9, J9, JT. The odds are attractive, but i'll be folding many rivers facing another bet so it feels wrong to call.

Overanalyzing?