Hello. Super Duper Internet Service, may I help you?

Oh, hello. I signed up for the Internet and I need to type in my email address here. I don't know what it is.

What is your user name?

Joe Ferguson.

Is that your full name or your user name?

What's the difference?

Well for your email address.it would be your username at superduper dot com.

So I guess it would be JoeFerguson at superduper dot com.

If that's what your username is.

It's the only name I've got. Now. just where is the dot key on this thing?