Sunday night recap and a What Would You Do?

At this point in my 1/2 career, I'm still astounded by players paying off a full buy in on anything where they don't have "significant" equity.  Certainly, it's rarity to see top pair pay off a buy in, but that was my 5th hand into the session:

Dealt KK UTG.  Deciding how much to raise, I see 2 loose limpers throw in $2 ahead of me.  Assessing the situation, and calling to the dealer's attention that I had yet made my move, I raised to $13-14 UTG open.  Normal raise for this spot is $11, but I felt I could get away with a bit larger because these guys were sure to call.  Both called, as did the guy to my right in the BB and we see a flop of 3 3 Q - 2 clubs.  I lead for $30 into the $52 pot, expecting to see the LAG(s) with the random 3 raise it up.  No such activity - one LAG flats and the table folds.  $122 in the pot.

Turn is a blank 9(?) and I lead for $70.  Snap call from LAG.

River is another blank.  I auto shove for my final $105.  He thinks for a second and calls.  He pays off my overpair and my session is off to a nice start.

I see a lot of players slow down the turn and only get half stacks in the middle by the river in this spot.  With a paired board, Q high, what should I really be afraid of?  He can have random 3's but he's shown that he'll bet hard when he has what he believes to be the goods.  He pot controls (or tries to) the non-goods showdown worthy hands.  Therefore I get an early double up.

Mix of hands in between, one of which I'll point out:

KJdd BB.  Limpers in multiple spots and tightish straightforward player raises to $8-11 or something.  Small raise.  1 caller on BTN and I call my BB.  1 other caller (LAG) and we see a K 8 3 rainbow flop.  Out of position, I check and it checks through.  Turn is a 4.  I lead turn for $20 and get called by original raiser and LAG - BTN folds.  River is a blank.  I check and LAG fires $35.  Original raiser tanks for a bit and finally just calls.

What do you do there?

I'm 100% positive I'm ahead of LAG.  What do you make of original raiser's call?  I suppose I should call given the amount of money vs. the pot, but I want to make the right decision and not just call based on the pots odds.  I really felt like original raiser is pot controlling KQ, maybe even AK.  Stupidly, I muck and am shown bluff (LAG) vs. QQ (original raiser).  Stupid me.

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Final hand of interest:
Background is a curmudgeon (old man) sits down with a chip on his shoulder.  Buys in for $300 and is treading water.  I raise 9 9 to $15 from mid position against 2 limpers.  Folds to curmudgeon who calls.  Limpers fold.  Before the flop is laid out, he tells me he "checks dark."  We see a good flop of 3 7 T.  Backdoor straight draw + likely good pair.  I lead for $15 again, not sure why he's checking dark, but I want over cards to draw on me.  He c/rs me to $30 and, surprised, I call.  Turn is a J and he leads for $100 red.  I tank fold my turned gutter - 99% positive he's got JJ, QQ, KK, AA.  He's proud of himself and giving me the "F U" look - he ain't gonna take my punk ass bullshit.

7 hands later, UTG straddle $5:
I limp my 6 6 from UTG+2, 2 callers ahead of me and SB (tightish straightforward from above QQ hand) bumps it to $33 with $370 behind.  Curmudgeon calls ($350 behind) and I think for a bit.  ~10-1 implied but this is an awfully expensive call for speculating on sets.  Given curmudgeon now has a perceived history with me, I call thinking I'm ABSOLUTELY going to stack him if I hit.  I'm getting even nicer insurance if the 2 limpers come along, but they fold.  We see a beauty flop: 6 9 J rainbow.  Original raiser checks, curmudgeon leads for $60 and I try to assess original raiser.  Pretty sure that he's folding no matter what I do, I raise to $200.  Curmudgeon insta-monkey shoves his remaining $290 and I snap him off.  I flip over my 6 6 and he is totally and completely miffed.  He roots for a K which doesn't get there - board runs blank, Ace - and his buy in is gone plus the money from our earlier mix up.  I can see the steam coming out of his ears - oh man!  He flicks my cards, pounds on the table, and walks away muttering all sorts of stuff.

It's always comical when you stack a guy like this.  You only hope that he thinks it's a pissing contest and buys back in immediately, determined to "teach a lesson."  I didn't say a single word to him, but alas, he stormed off.  Oh well.