If you see a person being led, or helped by another, and it's pretty obvious that they are blind ("there's a curb there, ok here's a step, and another ... I've got the door you can go through ... etc.") please do not rush past, bump the person being guided or the person doing the guiding. Please be a little patient, yes we're a bit slow but that extra 30 seconds won't kill you, I promise.
If you are working at a restaurant seating tables and I quietly ask you to please not rush, we have a person who cannot see well, I mean it ... Slow Down! She can't see where she's going and we can only lead her so fast. Again, I know you are busy but that extra 30 seconds won't kill you.