Jonathany16 of Iloilo City Is An Idiot

I just met an idiot in Pokerstars while playing one of the phase one online freeroll qualifiers for the Filipino Poker Tour 14 Main Event.

Sitting short-stacked with less than 1k in chips against a table, averaging maybe 3k, I sit on the BB with AQ off. Almost everyone limps in, and I shove all-in. Jonathany16 sits UTG and makes the insta-call with A6 off. I flop top pair Q and two pair the A on the turn to double up, and I remark "A6?"

After folding for two rounds, I decide to make a play, and this is what happens:

PokerStars Game #44778207968: Tournament #266611036, Freeroll Hold'em No Limit - Level IV (50/100) - 2010/05/29 12:05:22 ET

Table '266611036 33' 9-max Seat #2 is the button
Seat 1: boc007 (2530 in chips)
Seat 2: jonathany16 (4530 in chips)
Seat 3: D5LR (30 in chips) is sitting out
Seat 4: BuRa0t (910 in chips) is sitting out
Seat 5: semaj501 (870 in chips) is sitting out
Seat 6: eastwind19 (810 in chips) is sitting out
Seat 7: velous096 (890 in chips) is sitting out
Seat 8: matela2318 (2310 in chips)
Seat 9: JJDuque (1870 in chips)
D5LR: posts small blind 30 and is all-in
BuRa0t: posts big blind 100
*** HOLE CARDS ***
Dealt to JJDuque [5h 8h]
semaj501: folds
eastwind19: folds
velous096: folds
matela2318: folds
JJDuque: raises 300 to 400
boc007: folds
jonathany16: calls 400
D5LR: folds
BuRa0t: folds
*** FLOP *** [Kh 4c 3s]
JJDuque: bets 600
jonathany16: calls 600
*** TURN *** [Kh 4c 3s] [9s]
JJDuque: bets 870 and is all-in
jonathany16: calls 870
*** RIVER *** [Kh 4c 3s 9s] [Ad]
*** SHOW DOWN ***
JJDuque: shows [5h 8h] (high card Ace)
jonathany16: shows [Jh 5s] (high card Ace - King+Jack kicker)
jonathany16 collected 3750 from side pot
jonathany16 collected 120 from main pot

What kind of fucking idiot calls with Jack high?!!!???!? Jonathany16 of Iloilo!