Not sure if it's the same in the US but in U.K my favourite dislike of expression is the "Answered question".....to explain.
I am in the queue at the Theatre when someone I haven't seen for a while passes by and says "Hi Mike, what are you doing going to the theatre"??      Or they may say "What are you doing sitting there"?
or "What are you doing eating at Mc Donalds"?
Sure the Brits will understand what I am saying here...so many people do this.
Best wishes all.