So what were you doing to forget you had a gun on the bonnet for the 10+ seconds the defender takes to get to 40?
I had my son with me and I broke my normal routine I have when I returned to the car. I always place my rifle on the RHS wing whilst I unload and get the truck opened up. On this occasion the rifle was placed on the passenger side wing as I was helping helping my son (7 yrs) with lighting as it was dark. Not being in my line of sight and at night, I just plain missed seeing it when I drove off. With my lad in the truck I was focussed on getting him sorted and chatting about the hunt.
Once when I was soldiering (mid 90's) I drove a couple of hours with a F88 (not mine and I didn't see it placed there) on the wing of a 110 gun buggy...unfortunately in this case the K95 lasted only 5 minutes and jumped free as I cornered on a dirt road.
I will never use the wings again as a temporary shelf...left or righthand side. I could have easily lost my rifle forever.
Hannes will look after you. Who knows they may lose the scope during repairs and give you a new one?
I'll drop Hannes an email soon and see what he recommends. Whatever happens I'm sure it will end up being cheaper to repair than replace.