Calling with King high...

I played an interesting hand the other day.  I "played up" to 3/6 on SWC and ran into a TOTAL LAGbot who was playing a 50/30 or thereabout.  I raised KQs UTG and get him as the second caller:

(Sorry for the raw format; I don't believe there's a hand converter available just yet for SWC)

Game: NL Hold'em (120 - 600) - Blinds 3/6
Site: Seals With Clubs
Table: NLHE 9max 3/6 #1
Seat 1: a*m (1877.66)
Seat 2: A***1 (564)
Seat 3: P***a (596.33)
Seat 4: a***8 (715.91) - sitting out
Seat 5: W***a (250) - waiting for big blind
Seat 6: P***f (543)
Seat 7: M***s (571.57)
Seat 8: K**pFloppin (679.73)
Seat 9: P***o (855.26)
P***a has the dealer button
P***f  posts small blind 3
M***s posts big blind 6
** Hole Cards **
Dealt to K**pFloppin [Ks Qs]
K**pFloppin raises to 18
P***o calls 18
a*m calls 18
A***1 folds
P***a folds
P***f has timed out
P***f folds
M***s folds
** Flop ** [6h 3d 8h]
K**pFloppin bets 35 Standard cbet
P***o folds
a*m calls 35 When he calls, I'm 95% putting him on a flush draw.  He's the type that raises all hands, and has no problem stacking of top pair, which is how he's built his 1877 chip stack - aggression into the fear of the normally low stakes players.
** Turn ** [5c]
K**pFloppin checks I'm going to check for pot control just in case he shows up with something stupid.
a*m checks
** River ** [2s]
K**pFloppin checks Another blank, but it makes a backdoor 4 straight.  4's are in his range, but I can't ever see him checking through all the way like this.  He's got a flush draw, but the question is: is it Ace high - or worse.
a*m bets 70
K**pFloppin calls 70
** Pot Show Down ** [6h 3d 8h 5c 2s]
a*m shows [Kd Th] (High Card King +T865)
K**pFloppin shows [Ks Qs] (High Card King +Q865)
K**pFloppin wins Pot (266.18) with High Card
Rake (6.82)


By the river, he has position on me and has checked through the turn.  If he has *ANYTHING* here, he's betting the turn, as he's proven time & time again to do - in fact, I'm surprised he's not betting the turn with the naked draw.  Not only is he LAGgy, but he's aggro when he senses weakness.  I'm fairly (more than 90%) certain he's on the flush draw - the question is how good of a flush draw does he have?  He's shown to 3bet any good Ace broadways, so I can more or less discount that from his range.  I can beat all K high or worse draws.  The main concern I have is if he shows up with the Ax flush draw, or nipped a low pair.  If he nipped the low pair, I can easily see him checking through to get to showdown, but leads 70% pot; he wants to win the pot outright without a showdown.  Although the 2 completed the 4 straight, he's rarely showing up with Ah4h, the other concern (again, he didn't bet the turn).  Since there's much more to his range than Ax (50% VPIP, after all), I snap call his bluff on the river with a bit of a gulp.

He got very pissed at my snapping his bluff - he got up and left immediately.  Fun times when you can call K high and win :-).  Definitely not an everyday occurrence.