Took a flight for work yesterday. Seat 28A clearly on the ticket. When I arrived at my seat it was already occupied. I double check my ticket 28A, look up seat 28A. Politely tell the man he is in the wrong seat, I think, and could he check his ticket, stares at me blankly. Flight attendant comes over and asks the man in the seat, wobbling his head, to see his ticket, 34E. What part of 34E is 28A I ask?? I mean I know it is confusing for some but if you’ve made it as far as 28A why did you not just sit in 1A?