The difference between Becca at age 9 and Becca at 29:
You: Don't worry--you'll do fine on your exams. I know it.
Becca, Age 9: Really? Wow, thanks. I feel much better now. Seriously, thanks.
Becca, age 29: What? How can you make a statement like that? Where's your evidence? Are you citing an expert here, or is that your own, unfounded opinion? I don't deal in conjectures bud, I need EVIDENCE! Everyone has an opinion--my dog has an opinion--what you should have learned by now is to support your opinions with facts, quotations, textual support for god's sake. Honestly, an opinion like that, completely unfounded and unsupported is worthless to me. And cite your source. MLA style, please.