I reckon the story is a cover up to be honest. She had already got her bread and milk and needed to pop to the chemist across the road to pick up her 'sane' pills, instead of exiting the car park in the usual fashion she decided to attempt a roof jump to save a bit of time and get the adrenaline pumping for the first time in 40 years.....she then backed out at the last minute as she got a call on her n95 saying that she could get a free upgrade from her trusty 8gig, at this point she left her car and did a cheeky dance on the roof to celebrate her good news.