hand #1 (from memory):
NL$10 6max
I've been running good, raising and cbet-ing alot and pushing people around (no showdown yet). VILLAIN looks fishy: calling to hit the flop, chasing draws etc.
VILLAIN has ~$7, HERO covers
PREFLOP: all limp, HERO [K,K] pots it from BB, VILLAIN calls (pot: ~$1.8)
FLOP: K 9 4
Personally I'm big fan of fastplaying monsters and since I've been so aggro and chances were he is dying to look me up, it took me like second to decide to bet this strong hoping he's connected with this flop and is sick of being pushed around
HERO bets $1.8, VILLAIN raises ~$6 (All in) ...
He had Q9.

(there were some similar hands in between)

hand #2
$10 HU SNG
VILLAIN was very aggressive in position, betting (pot size) pretty much every time I checked to him. Once the blind reached t25/t50 with stacks ~t1200 (effective, he covers) I started to catch some cards and check/raised him (All in) like crazy. He folded every time I did this.
VILLAIN (SB/BN) calls t25, HERO [T,7] checks
(pot: t100)
FLOP: T 7 5
HERO checks, VILLAIN bets t100
At first moment slowplaying looked like good idea, but then I remembered he's probably sick of me pushing him, so ...
HERO raises t1150 (All in), VILLAIN calls
He had J5.

So, what's the point?

At first moment I didn't even realize there's connection between these hands when it suddenly 'clicked' : he misread my slight (but not too long) delay before acting. I was very aggressive, getting away with it and opponent is certainly waiting for good spot to get me 'with my pants down'. But why did they pick these exact spots? Why not earlier? Or little later?

Might it be that he, while waiting for good opportunity, suddenly noticed that I took a little longer to bet and went like: 'That's it! I've got him!'? If so than it opens lots of questions ...
Should this factor be important part of my game?
Might this be a profitable donk-raise-inducer when I need it?
Could it be the reason why my last night's big bluff got called with some awful [censored]?

Anyone noticed something similar or is it just me?

Just remember, this is not about stealing blinds or winning small-ish pots with cbets, but playing HUGE pots and stacking/destacking.