[just another ref]

Has everyone except me adopted an advantage/disadvantage philosophy to travel calls? It seems that I see it more and more, mainly on a catch on the wing. The player moves one foot and then the other. It looks like some of them make a point of it. No call. I'm not talking fractions of an inch, but "He had to see that!" movement. Is the idea he's not going anywhere, no advantage, play on? Or is it just me? again