KK vs. unknown
 

Just sat down, no hands on Button. Pretty sure this is a calldown?

PokerStars 2/4 Hold'em (6 handed) Poker Stars Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

Preflop: Hero is SB with K[img]/images/graemlins/heart.gif[/img], K[img]/images/graemlins/diamond.gif[/img].
<font color="#666666">3 folds</font>, Button calls, <font color="#CC3333">Hero raises</font>, <font color="#666666">1 fold</font>, Button calls.

Flop: (5 SB) T[img]/images/graemlins/spade.gif[/img], 2[img]/images/graemlins/club.gif[/img], 9[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets</font>, Button calls.

Turn: (3.50 BB) A[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets</font>, <font color="#CC3333">Button raises</font>, Hero

Re: KK vs. unknown
 

Lots of draws out, and people love to raise the ace scare card. Call it down and take a note.

Re: KK vs. unknown
 

This is a spot where a read would really help. Against a passive player this is a fold. Against an aggressive opponent who never open limps on the button unless he has aces this is most likely a fold in this smallish pot. Against your typical 2/4 dufus who thinks his KT is the nuts and is waiting until the turn to raise and doesn't realize that the ace is the worst card in the deck for him this a calldown.

Re: KK vs. unknown
 

standard calling down situation