You've been very lucky, Eddie
Insurance
It's illegal to supervise a learner driver without fully informing the vehicle's insurance company, ensuring that they know the learner has a provisional licence and that car insurance cover is in place.
The learner must either be insured as a named driver on your vehicle's policy or, if they're learning in their own car, they must be insured as the main driver, and the supervisor must be insured as a named driver.
http://www.gocompare.com/car-insurance/teaching-a-learner-to-drive/
The supervisor must be insured to drive the learner driver’s car, and vice versa if the learner driver is driving the supervisor’s car. - See more at:
http://www.4youngdrivers.co.uk/information/rules-for-supervising-learner-drivers.htm#sthash.NSP2UDyp.dpuf