re: Poker & flopping 2 pair
Shinedown, your hand has not a lot to do with how OP hand plays out: two pairs, against two people can be a strong hand on a KT4 flop, depending on their preflop range: it loses value once you factor in straight and flush draws or set potential. You have everybody and their mom in your hand Shinedown: requirement for winning hand goes up a lot in these cases.
In your hand Shinedown, PF is bad, flop raise is bad and then going AI is bad IMHO. This is not a good flop at all for two pairs since once you get reraised AI, you are drawing very, very thin since somebody is bound to have at least a str8, bigger two pairs or set. This was seriously bad, sorry.
In OP's hand, a set of Ts or Ks is unlikely due to to passive preflop play (assuming normal/fishy opponents), wich leaves us with only a set of 4's. Since OP had a 4 in his hand, this hand becomes pretty unlikely and villain's range should be weighted more towards single pair, higher two pairs and str8/flush draw. It's very read dependant but I would gladly go AI in OP's hand. I'm thinking about raise/folding 1.50 on the flop in your hand shinedown.