A man stopped on the wide pavement and stood to the side to allow me to pass. He didn't need to. I didn't say thank you, as it was a pointless act. I heard a very British mumbled sarcastic comment "Well THANK you".
Yesterday, a woman pulled the very long lead on her dog in so that there was no longer a cable across the width of the path. I didn't say thank you to her either.
I'm done saying thank you to people who either do something pointless which was never needed, or who are correcting incorrect behaviour.
AIBU?