My personal experience with this is that no matter how polite I am, the deaf (or blind) person will always get irritated or hostile whenever I try to help.
The one and only exception was a blind guy getting on a tram here in Melbourne: the driver tried to close door with the dog on and guy still out and I had to jam the door open with my foot. He was very relieved, as was the dog. :)
Turning it around, I would probably get fairly annoyed too, by some random wandering over and assuming I was incapable of negotiating the treacherous perils of ordering my food or finding the Exit or whatever ...
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The one and only exception was a blind guy getting on a tram here in Melbourne: the driver tried to close door with the dog on and guy still out and I had to jam the door open with my foot. He was very relieved, as was the dog. :)
Turning it around, I would probably get fairly annoyed too, by some random wandering over and assuming I was incapable of negotiating the treacherous perils of ordering my food or finding the Exit or whatever ...