TOPIC: Overbooking ?

Hi,
Is there any way to implement something to prevent overbooking ?

We just released our courses today and had 400-500 logged in users that was booking the courses.

The most popular courses got overbooked, for ex. a course that has a limit of 8 got 12 bookings.

I understand that it is impossible for the system to cope with that, but if it would be possible to have a check on how many users are using the form at a given moment it might be possible to prevent more users to reach the form ?

//bosse