Fat spider with short stout legs, the glass it's in is a double shot glass, pictures taken before it was released outside.
No interactions present.
Probably a female Tegenaria species - hence the distended opisthosoma.
A mouse spider, scotophaeus blackwalli, from shape and general jizz.
Lat/Lng: 50.6987, -1.1717
OS grid ref: SZ585891