On 13/07/18 19:20, ARW wrote:
Can anyone guess who fitted them to the roof of my van?

Actually it was not very funny.

I did, with the help of a bloke in a pickup with orange flashing lights
on the roof that stopped to help manage to get them off the motorway
(they were blocking lanes 2 and 3) throw them down the banking of the
hard shoulder, get the motorway running again and **** off before the
police arrived.

Oops.