In the first hand I don't mind the limp pre-flop or even the call. On the flop You had TP decent kicker you bet and got called (automatic warning sign given your read on the player). The turn is where I have a question on your play. You have to bet at it (this time at least 1/2-full pot)because checking shows weakness in this spot and you want to know where your at in the hand. You we're repping the K post-flop and then you checked on the turn giving your opponent the opportunity to snatch up the pot (in other words you showed weakness). If you bet and get raised fold, you bet and get called check fold the river (unless it's a 10 then you gotta bust him). In this situation i'm putting him on AK no doubt based on the pre-flop raise and the call on the flop.

In the 2nd hand....It depends, me I don't know because every time I'm in that spot it's all about feel and reads but sometimes you gotta gamble because worse case you still have outs to the boat or a 4 of a kind(~20%). But on the flop what happened to the first person and how did he bet as well as the response of the fish? From what I'm gathering it seems that you all went all-in on the turn...is this right?