I hate people who wear cold weather gear in warm/heated places
Soup served in a bowl.
Who would want to consume a warm smoothie slowly with a spoon?
At least when in family I drink straight from the bowl. With the spoon (sometimes chopsticks) being only for the solid bits.
My wife was raised in a culture where this is extremely rude. I know she hates it so I just take the bowl into the kitchen and finish it off there. I don’t want to screw around with the spoon for 10 hours either.