Hawthorn Shield Bug ( Acanthosoma haemorrhoidale )

At least that is what I think it is.  If I am correct it is one of the common UK Shield Bugs.  Which I find very interesting as I have never seen one before,  lots of Green SHield Bugs but not this one.

We were having some of the Marquee lights PAT tested.  (OK pedant I know the T stands for testing but to say we were having the light pat or even pated doesn't really make sense).  When the man doing them said "Oh there's a Shield Bug".  Obviously, I had to take a shot.  Working on the self imposed rule that the less likely a blip is to be repeatable, then that is the one you use, the bug had to be the blip.