Hypothetical situation:
SmartMuffin is fired from his job because he is a conservative. His employer has decided that conservatives are more likely to spend too much time on Glenn Beck's website when they should be working. It doesn't matter if SmartMuffin has ever actually gone to Glenn Beck's website during work, this is simply an additional risk that his employer could avoid by replacing him with a non-conservative.
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Black Turtle spilled my diet soda!