So many software devs seem to have this attitude that the customer (internal or external) should just shut up and be happy with whatever they've been given. I'

So many software devs seem to have this attitude that the customer (internal or external) should just shut up and be happy with whatever they've been given. I've often felt that many devs could benefit from a stint waiting tables — where the customer is always right and your income is dependent on being helpful and responsive.