Sadly, dogs and their owners by default, are often openly discriminated against in Singapore.
Guide dogs here have to suffer the same as their lesser skilled counterparts. That means that they can be (and are) denied entry to many public places, inclusive of public transportation. Many commercial outlets (malls etc.) don't welcome dogs - not even guide dogs.
The Koran says that to touch a dog's SALIVA is taboo - BUT, muslims who come into contact with the above can still easily go through a "cleansing" process (involves washing with earth or something like that) to "purify" themselves.
If I were to ever become dependent on a guide dog, I doubt that anyone who'd cut me or my dog ANY slack in this country.
In a local pet magazine, a blind guy who had a guide dog and was attached to the US embassy for a few months commented that he'd never felt as unwelcomed anywhere in the world as he did while in Singapore.
You know what Mahatma Ghandi said about judging a nation by the way her people treat their animals etc.