Want to know what I hate?

Sounds like you spent the day in a microcosm called Jerkland.

You know what grinds my gears?
People who get to the turnstile, especially if there's only 1 or 2, and then start to take their metrocard out of their wallet or bag.
Really? Are you surprised that you need a metrocard? What did you think was going to happen? Free subway day?

I hate people who give a large bill to pay for something that costs $6.37 then say, "Oh wait, I have the 37 cents." then spend two minutes digging in their pockets for the change. Like you are actually saving the cashier some trouble, when it's plainly clear that the cashier already had made the change and is ready to give it to you, as if you are never going to ever get any change ever again in your life, as if those few coins are going to weigh you down during the day. And anyway, why not give them $1.37? That way you could have them give you back bills in $5 denominations, no singles, because those singles could be weighing you down too, cluttering up your wallet.