Snail Photobomb

I took this on the same street as my Blip from Thursday of last week (the rusty piece of metal with the hole in the top).  This is further down the stone wall than my other Blip and I'd just intended on taking a shot of a similar looking piece of metal but with a slightly different background.  

As I started shooting I got a bit of a surprise.  I hadn't initially noticed it but there was a snail on the back of the piece of metal.  I think I must have gatecrashed their morning aerobics session as there was a lot of energetic sideways and twisting manoeuvres.  I've not had a shot before that was photobombed by a snail!