Snail in the woods. It was at home, but didn't want to come out.
No interactions present.
It is not a usual pulmonate land snail. Caenogastropoda Pomatiasidae more akin to the sea shore winkle.
I'll try for a better shot of the operculum if I see another.
Lat/Lng: 51.255, 0.2403
OS grid ref: TQ564530