I know better but it still happens way too often. I try to get too smart and maximize my profits (although in this case it didn't matter).
Imagine Sicily, 1934... (sorry, bad Golden Girls reference).
I was playing a ring game, NL Holdem, $0.10/$0.25 blinds. I had been playing for a while when I was dealt AdKc behind the dealer. 2nd under the gun raises to $0.75 and I reraise to $1.50. He was a pretty loose player and it seemed safe. Everyone else folded.
Flop comes 3dAdKc. He checks then calls my 1/2 pot bet ($1.67)
Turn comes 4s and I am still in love with my cards so I bet another 1/2 pot ($4.46)
River comes 2c and I am blinded by how good my cards are (or not). I push all in for another $14.08. You know how this is going to end - what does he have?
The obvious one I should have seen was a 5 for the straight but there is obviously a bunch of other hand (anything tripped). Given his behavior from the start I might have seen a small pocket pair and since he was with me from the beginning, you could guess 3s. In my defense he was a pretty loose aggressive player and as I said in the title, I was in love with my AK.
He turned over 33 and took the pot. I wasn't busted because I had a larger stack than him but it definitely made this the worse session since I started playing again.
Just to end my night on a nice note, I played a $11 S&G (not a bounty one) and managed to finish first. The last opponent wasn't overly happy and made some stupid comment which I have been using my $50 winnings to pleasantly forget about.