A tale of two flushes

Last Thursday night, my mini win streak came to a screeching halt. I hit the felt after 69 hands; another "long is wrong" kind of night. My biggest loss on a single hand was $15,400; here's how it went down:

Table 'Algunde VIII' 9-max (Play Money) Seat #3 is the button
Seat 1: (36400 in chips)
Seat 3: (15400 in chips)
Seat 4: (22466 in chips)
Seat 5: (24800 in chips)
Seat 7: neostreet (24100 in chips)
Seat 8: (39600 in chips)
Seat 9: (42958 in chips)
Seat 4: posts small blind 100
Seat 5: posts big blind 200
*** HOLE CARDS ***
Dealt to neostreet [9h Kc]
neostreet: calls 200
Seat 8: folds
Seat 9: calls 200
Seat 1: calls 200
Seat 3: calls 200
Seat 4: calls 100
Seat 5: checks
*** FLOP *** [2s 4s Ks]
Seat 4: checks
Seat 5: bets 200
neostreet: calls 200
Seat 9: calls 200
Seat 1: calls 200
Seat 3: raises 1000 to 1200
Seat 4: folds
Seat 5: calls 1000
neostreet: calls 1000
Seat 9: folds
Seat 1: folds
*** TURN *** [2s 4s Ks] [3h]
Seat 9 leaves the table
Seat 5: checks
neostreet: checks
Seat 3: bets 5200
Seat 5: calls 5200
neostreet: calls 5200
*** RIVER *** [2s 4s Ks 3h] [Qc]
Seat 5: checks
neostreet: checks
Seat 3: bets 8800 and is all-in
Seat 5: folds
neostreet: calls 8800
*** SHOW DOWN ***
Seat 3: shows [5s 7s] (a flush, King high)
neostreet: shows [9h Kc] (a pair of Kings)
Seat 3 collected 38400 from pot

I just didn't believe that Seat 3 had flopped a flush. Funnily enough, three hands later I flopped a flush myself, and beat Seat 3's nine high straight with it; however, that pot was only worth $12,600, of which only $6,700 was o.p.m. (other people's money).

Back to the drawing board.

During current Hold'em session you were dealt 69 hands and saw flop:
- 12 out of 12 times while in big blind (100%)
- 10 out of 11 times while in small blind (90%)
- 39 out of 46 times in other positions (84%)
- a total of 61 out of 69 (88%)
Pots won at showdown - 5 of 16 (31%)
Pots won without showdown - 8

delta: $-40,000
balance: $862,846