Notify host by email when user logs out of computer

Add option when right-clicking a computer to notify host when the user has logged out of their computer and/or if the user is idle for X number of minutes. A couple examples of its use....
There's a meeting and you need to connect to that conference room computer once the meeting is over. You use this feature and get an email when the user has logged out.
Another example would be if a user says they will be leaving at 3PM so you can look at their computer, but they don't end up leaving until 3:30. Having this feature would keep the host from having to either physically check to see if the user is still there OR keep the host from having to keep refreshing to see if the user is gone/idle.