I'm on the train home, sat in an empty quadrant of four seats with no table.
A middle-aged lady boarded the train, sat down on the seat diagonal from me, and then proceeded to take both her shoes off and put her bare feet on the seat next to me.
I must have made a face or something, because she looked at me and said "it's alright, they're clean."
I immediately got up and found another seat!
AIBU to have found what she did quite unpleasant and rude?