The use of either word variation was only caught by you. Probably the only conversation you stopped to analyze enough to prove a small unnecessary point. My verbiage usage what does it matter, I retired after a 24 year military career and now make six figures....do I really need to worry about my word usage? I don't think so.
English
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Grammar: the difference between knowing your shit, and knowing you're shit. It's an important differentiation. Thank you for your service and congrats on the great salary. With all that money I'm surprised you have time for such lowly things as video games. Perhaps use some of that moolah to buy a book or two so that you don't make first grade grammatical errors.