Think this should have been an automatic push?

[KeysrSoze]

I'm pretty sure I screwed up here. I wish I saved hand history, but it went something like this.

3 left in SnG, blinds 400/800
Sb has about 5000 after posting blind
BB has 1800 after posting blind
Button (hero) has about 7000

I get dealt AK off, but instead of going all in I only bet 2600, enough to put the big blind short stack all in, trying to isolate him. Instead of folding though, the sb comes over the top all in, and seeing this the bb folds. I assume he has a pair, I gamble and call as I'd be pretty much guaranteed 1st if I hit. Sure enough he has 44 and I fail to connect, and I'm down to about 1000 after I post the next blind. (got lucky next hand and made 2nd anyway, thank god)

I'm assuming you all would have just pushed to try to get SB to drop a small hand? Would any of you even drop that pair against an all in, though?