I am better at your job than you are, Episode 9001: The Mystery of the Missing Electric Bill...
Note that there are characters that look kinda alike, the hyphen (-), the underscore (_) and the dash (‒).
The hyphen is what you get when you press the button on the keyboard. Most people call it a dash because they don't know that it's actually too short to be a dash, but, by default, MS word will change two hypens (--) into a dash for you, because sometimes Microsoft makes things that are nifty like that. All that said, the actual word "hyphen" isn't so obscure that a High School graduate shouldn't know what it means.
The dash is somewhat complex, but generally outdated form of punctuation in the English language. It's kinda like the semi-colon. There is no button on the keyboard for it, and nobody talks about it, EVER. When they say dash, unless they're an English Professor, they mean hyphen.
The underscore has absolutely nothing at all to do with the above. Best I can tell, it's a holdover from typewriters when there wasn't an "underline" selection to make on your word processing software... because there was no word processing software.
There is a hyphen in my e-Mail address. I knew this when setting up my electric bill, and knew the electric bill was important. IIRC, e-mail addresses are not case sensitive, so there's no reason to hit shift at any point during my e-mail address, either (aside from the hyphen, it's all letters). So, upon telling the telephone rep that works for my electric company that my e-mail was [first name](hyphen)[last name](at)[university domain](dot)edu to set up my electronic electric bill (figure that out!), SOMEHOW THEY PUT AN UNDERSCORE!
Net result: I'm now over 2 months behind in my electric bills, because I haven't been getting any of them for that period of time. Thankfully, they're not going to cut me off if I pay on the first, when my next paycheck comes in, and thanks to another relatively intelligent and helpful customer service rep that I just spoke to, the situation is hopefully rectified.
Why, by the way, have I titled this "I am better at your job than you are?" I interviewed for a call center job at a different company a couple months ago, and they didn't even put me into training, they just flat out turned me down.