I figure I had the best hand after the flop: QQ with top kicker.  I pretty much knew I'd be getting all my chips in but I did it in the wrong order. I checked.  Scuba bet ~3.8K making the pot about 11K.  I push all-in with about 14K, about another 10K for Scuba, about 2.5:1.  I think Scuba puts me on missing the flop with AK, AJ or a low pair and he calls flipping over J9os.  He has middle pair (99).
turn: K
river: T
9TJQK = a straight for Scuba.
my 1st error: probably should have shoved pre-flop.
my 2nd error: definitely should have bet-out all-in immediately after the flop.  That would have kept the pot odds much lower for a call.  (~1.5:1)
That's what I get for slow-playing top pair.  Hopefully I'll remember this lesson next time! LOL