i am sure he could still cliam as what happens when people take your keys from your house as it happened to my mate and his insurance paid out .
Basically he's screwed
Deep within the small print of his Insurance document it state's you should do all in your power to keep you car safe and take every reasonable effort to do so, and
leaving your keys in the ignition under any circumstance whilst the car is unattended does not constitute this.
Personally I don't need anyone to tell me how stupid this is as I value my car and would never dream of leaving the keys in the ignition.
It's unlucky but the owner hasn't helped himself and would get no sympathy from me im afraid! Merry Christmas
:xmastree: