McArthur doubles up

Dave Maudlin raised to 21k in middle position and Gordon McArthur reraised to 45k in the cut-off. Maudlin called. The flop was 9 4 4. Maudlin checked to McArthur who moved all-in for his remaining 36k. With 145k in the pot and odds of 4/1 on the call, Maudlin went into the tank. He thought, asked the dealer how much the bet was, thought a bit more, asked the dealer again, thought even more and finally the clock was called. He called with 7 7. McArthur had K K. The turn and river were T 8 and McArthur doubled up to around 180k.