Defending with trash and flopping the world

$1/$2 game at Mohegan Sun on the evening of Columbus Day. A UConn Huskies Men’s Basketball preseason exhibition game has just ended and the room is starting to fill up with Huskies fans (myself included) trying to squeeze in some poker before bed. It’s around 8:30pm. This is a brand new table, but after just an orbit or two it’s already clear that it is an incredible one.

Main players here are as follows:

• The Whale - Mid-thirties Middle Eastern guy who may or may not have physical and/or intellectual disabilities. He is a very nice guy, but is among the worst poker players I have encountered all year and appears to be a bit of a degenerate. He is playing virtually every hand and is either: a.) bluffing with any two facing perceived weakness; b.) calling down to the river with any piece; or c.) completely checked out of the hand, often to the point of taking a phone call from another player in the room or even leaving the table with his cards still in front of him.
  
  
• The Fish - More of a generic low-stakes live fish. Beefy MAWG UConn fan playing loose-passive and fairly face-up.
  

Relevant HH with myself, the whale, and the fish, who is the main villain in this hand:

Straddled pot. I open KTs in HJ to $15, whale calls CO, fishy UConn fan in BB makes it $32, call, call. Before the flop is dealt I double-check my hole cards, as is my habit in virtually every situation. When I look up, BB has bet $100 into $97. I look at the board and see that there are four cards dealt: T 4 2 3. I ask the dealer why the turn was dealt and he says, “The flop checked around, right?”

Apparently BB fish snap-checked the flop, the Whale checked out-of-turn, and the dealer put out the turn card all in the time it took me to check my hole cards. The floor comes over, says that my action is a presumed check and the action stands, so I just go ahead and make the easiest fold of all time. The Whale calls and says “I need another 3!” The river is a brick, BB fish jams and the Whale folds. The BB shows AA.

OTTH

42dd

I straddle $4 off ~$315, which is the effective stack in this hand. Whale opens $15 from UTG. Fishy UConn Fan calls the button. I choose to defend my straddle.

Flop is Tc 6d 3d ($48 before rake)

I check. The whale cbets $35 and the fish calls. I don’t want to xr vs the whale so I choose to check-call.

Turn is Tc 6d 3d 4s ($153 before rake)

I check. Whale checks and appears to check out of the hand. The button bets $70. Hero?

Do we check-call? Check-shove with around $270 total? Also curious how wide people are defending the straddle in this spot. I imagine for many 2+2ers this is a pretty clear-cut fold pre…