IMO this would be a terrible assumption. The assumption that they were paying attention to his set, or even know what a DJ is supposed to do...But even worse, the assumption that just because he's a DJ he has every song known to mankind. Think about how the general public views DJ's and a human jukebox comes to mind.
If we assumed that everyone that asked for something always knew enough about what they wanted or about what the product/service entailed, we'd have a lot of people wasting time/money on things that they know absolutely nothing about. That's why so many people own iPhones![]()
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