Document Management - Check in

If a user leaves a document checked out, what is the best way for other users/administrators to check the document in?
Is anyone else experiencing users that do not check their documents back in and go to lunch/on leave/sick day etc and other users in the department can not access
the documents?

This post was taken offline but the below scenario worked;
If you users want to be able to bulk checkin documents from the OMS Document Dialog (Word File->Open) this can be enabled as follows.
1. Edit the search list ‘SCHDOCCHECKOUT’
2. Set Multi Select Property to True
3. Add a button set the Action to ‘none’ and call it ‘CMDCHECKIN’
4. Set the button Enabled When Multi Selected to ‘True’, When No Rows to ‘False’
5. To refresh the searchlist add the following code to the searchlist – this will fire after the internal Check In code.
if (e.ButtonName == “CMDCHECKIN”)
{
SearchControl.SearchList.Search(false);
}
This will cause the standard Check In routine to run in the same way as it does on the Matters Documents Tab.