£1/£2 cash game at DTD.
Most people at the table are sitting £500+ deep and is heavily populated by absolute donks.
Hero on £4 straddle, 5 players complete and i check my option with

(Pot £31)
Flop comes down a rather nice

. Julian Thew checks from BB, i check, early limper bets out £25 which is called by next limper. Cut off folds and Julian makes it £75 to go from an approx £900 stack. Back on me with the coconuts (£700 stack) and i decide to call hoping the original better & caller are in the mood to chase gut shots etc drawing dead or very thinly if they have over pairs. They both fold and we are heads up. (Pot £231)
Obv Julian is a v.good player and the chances of him making a move here against players who dont like to fold is 0%. His range is obv 5 X, Deuces (Although unlikely as he would have to have the last two in the deck) or possibly a big over pair which he limped hoping for me to raise my straddle seeing where he is, although i think this isnt too likely.
Turn card comes

and Julian leads out for £150
I would like to say i moved in here but i decided to flat with £425 left behind. I think this is a pretty clear shove for value as he clearly has a hand but i know i made a mistake by calling, this isnt really the point of the post.
Anyway the interesting bit comes on the river (Pot £531)
I know Julian KNOWS i have a big hand here with cold calling the £75 on the folp and his turn bet.
Im expecting to see a stopper bet on the river or a check call by a non paired up 5. River comes

and he now announces "All In"
Is this a snap call or does anybody find a fold here!?!? Is he ever going to shove

etc here when i could easily be sitting behind with a House??
Mitch.