The schedule plays a big part too, If he's got to be somewhere in an hour and there's 35 people in the alley, well do the math.
When I was lucky enough to get an autograph and a picture with him I was thrust to the front of the line by someone who knew the drill. Gord was great, the picture is great BUT if I had politely waited at the end of the line he would have run out of time. He had a schedule to keep, he was not being rude but sometimes there isn't enough time for "everyone". So get on up to the front ASAP. Have fun.
Bill