"If I employed a professional architect, I would expect them to design a house that complied with current legislation and industry best practices. I wouldn’t be expected to learn all this information up front, to make sure they did a good job. That’s why you hire professionals."
-- Andy Budd, from an interview in .NET magazine
I took this gem from an interview Andy Budd had with .NET magazine, discussing web accessability. The larger point he was making here is that accessability should not be the first thing cut from the budget, and the client shouldn't have to check up on the people making their site to ensure that accessability is part of the project - it should be a given.