This is one of the STUPIDEST ideas I have ever heard.
How will teh blind waiters know which food order is theirs?
How will they be able to serve the sizzling fajitas?
I would only go to a restaurant that hires deaf waiters and makes the patrons wear sound reduction headphones.
"Can I take your order?"
"What did you say?"
"We don't serve chicken flambay!"
"The cats in the way? What the hell is going on here?"
"WHat?"