So TonTon sent me this this morning, with the message "ah."
I assumed he was braving putting the roof down, but actually the hole was there when he got to the car. Some fucker has run a finger down the salt on the Subaru too, so we obviously have a joker in the back lane.
Looks like a new rear screen is £60, so I sent him to wilkosW whilst I was at work, for a fix Blue Peter would be proud of.
Excellent work, TdB!