Dangerous Move

Followup on the dangerous move. This was the board position, where A was an unexpectedly dangerous move. Well, unexpected by me, I am sure stronger players would have seen it before they played it.



White can probe:



If lower right corner wasn't there, this ladder would be quite disastrous:



To minimize damage, black has this sequence:



This is big profit for white. Ouch!
Just thought it was interesting position, during the game it seemed such an easy thing to hane at A, not really reading all the followups, but assuming white would submissively answer and follow me around. Bad bad bad bad habit.