Stupid call du jour

Full Tilt Poker Game #_: $10 + $1 Sit & Go (_), Table 1 - 40/80 - No Limit Hold'em - 0:14:57 ET - 2007/10/14
Seat 1: (1,285)
Seat 3: (1,975)
Seat 4: (2,540)
Seat 5: villain (1,220)
Seat 6: (2,040)
Seat 7: (675)
Seat 8: hero (2,535)
Seat 9: (1,230)
Seat 1 posts the small blind of 40
Seat 3 posts the big blind of 80
The button is in seat #9
*** HOLE CARDS ***
Dealt to hero [5h 5c]
Seat 4 folds
villain raises to 220
Seat 6 folds
Seat 7 folds
hero calls 220
Seat 9 folds
Seat 1 folds
Seat 3 calls 140
*** FLOP *** [7h Kh 7s]
kcher checks
villain checks
nsayer bets 1,000
Seat 3 folds
villain calls 1,000, and is all in
hero shows [5h 5c]
villain shows [Qh Qc]

And that, dear readers, is the stupidest call I've seen all week. There's no way I had a king? I'll admit that having a 7 would have likely made me slow-play, but how could he not put me on a king?

*** TURN *** [7h Kh 7s] [6s]
*** RIVER *** [7h Kh 7s 6s] [Ts]
hero shows two pair, Sevens and Fives
villain shows two pair, Queens and Sevens
villain wins the pot (2,700) with two pair, Queens and Sevens
*** SUMMARY ***
Total pot 2,700 | Rake 0
Board: [7h Kh 7s 6s Ts]
Seat 1: (small blind) folded before the Flop
Seat 3: (big blind) folded on the Flop
Seat 4: didn't bet (folded)
Seat 5: villain showed [Qh Qc] and won (2,700) with two pair, Queens and Sevens
Seat 6: didn't bet (folded)
Seat 7: didn't bet (folded)
Seat 8: hero showed [5h 5c] and lost with two pair, Sevens and Fives
Seat 9: (button) didn't bet (folded)