"How do I stop a squirrel ruining my lawn?... I’m in the u.k so i do not have access to guns or explosives before I get tons of killing suggestions."

... "The problem is not the squirrels. It is your attitude. I’m not trying to be mean.
Squirrels have just as much right to your yard as you do. Maybe more. The
animals of the world do not see property lines. They are doing what they need
to do in order to survive. The fact that you are upset by their behaviour only
makes you look self absorbed and petty. Please leave them alone. Take a
different approach and laugh at their antics. They are funny once you can let
it go. Chili powder might blind them. Do not use it."

Oh, I'm just out here on the front stoop, helping Meade with the gardening, by doing the part of the gardening that you can do on Google. Squirrels keep burying acorns in the otherwise lovely new lawn.