Hah! This reminds me of an old adage when teaching people how to use the mouse. Don't ever mention the right mouse button until the absolute last moment, if eve

Hah! This reminds me of an old adage when teaching people how to use the mouse. Don't ever mention the right mouse button until the absolute last moment, if ever. Because from the second you mention it, every time you say, "OK, now click the [window, button, menu, etc.]" they will instantly ask, "Right or left button?". Every. Single. Time.