You are being watched...

Hilsea Lines, Bastion 3

A vague narrative and a couple more photos here

https://johnnyc1959.wordpress.com/2021/03/07/do-you-have-a-case-mate/

...or as an alternative to surveillance, a song from the Southend Delta...

I was looking back to see
If she was looking back to see
If I was looking back at her...

Dr Feelgood.... “Looking Back”