Punctuation is important

Me: Your username is your first name. Your password is your last name followed by the number 13, then an exclamation mark.

Client: It doesn’t work.

Me: Strange, it should be xxxxx13!

Client: Nope, doesn’t work.

I login successfully, so we arrange a GoToMeeting so I can see what that problem is.

Me: Looks like you didn’t add the exclamation mark when typing the password.

Client: Oh, I didn’t think that was part of the password.

Me: Well, I wasn’t shouting it.