I was brought up to think before i say something. Other instances of pointless chatter are:-
'I don't like that shirt' - when you couldn't give a feck
'Yeah you look ill' - after you told them that you are ill
'Oh, that's not good' -after you sustained a heavy whack to the head/ received and 18 year term on a chain gang in Lousiana.
...and i thought there were many others as there surely are but as ever when it comes to remembering them I seem to have forgotten them all.