if the student is white knuckling the throttles on take off remember you have the mixtures to pull to stop anything from happening. For example, you pull a throttle closed on take off and the student doesn't retard the other throttle....don't try to figure out which mixture to pull just pull both of them. Had a student try to take off on me when I pulled a engine on take-off. Just anyways have a plan b AND c. Don't lose your concept of scanning for emergency landing spots either.

Have fun with it but remember it's a plane and to always fly it.