I've got about eight various Enfields and a couple of Brens on the wall of my office,a Bren and a Vickers on the floor plus several Stens, the odd Webley and a Thompson lying around.
When the County Firearms Officer came to inspect my shotgun cabinet in the same room he simply said "very nice",I produced the deac certificates and insisted he look at them. Cabinet pronounced OK and no further comment.
On another occasion when on holiday a few years ago,the alarm went off. Two officers turned up and went through the house room by room with a keyholder. Their torch beam fell on the "Enfield" wall and the comment was " f****k me - he's not Irish is he". Again the paperwork was produced and no further comment.