when I stepped out of the flight deck I tripped and they got thrown in to the middle of the aisle and PAX stepped on them. They didn't even pick them up and give them back to me they walked right past me I tried to stop them in the plane but it was too crowded, when I got out in to the terminal I thought I could find him without going out of my way but in the busy DTW terminal that is hard . I will discuss with support and see what happens.