Good question. When one Endorces or "Hires/ payes" someone again for a job/thing they did. I think. :)
B- You can adjust the mouse's double-click speed.
Some computer mouse software (depends on brand) will allow you to set new tasks for the mouse to perform. Sometimes there are mice that have extra buttons that can be programmed to do certain tasks.
Log in is the feature that allows you to access your electronic account in a website, database or other, also a bank account. Your username and password are stored in cookies (files that websites use and are stored in your browser) for the session. This is true if we talk about websites.
When you're done, you log out from your account, you disconnect. Cookies are cleared (for websites) and you're out.
Idk maybe at 6:00pm today cuz most of the malls are close. Happy Thanksgiving! :D