Second-Lieutenant Peter Vaux of 4th RTR has an amusing and telling story to tell of his experience during the battle of Arras on 21 May 1940:
I remember a silly thing that happened as we went back along that road. Some small anti-tank gun fired on my Light Tank and a shot went in through the left of my turret, just behind my gunner's head, and out through the right side of the turret just behind my head – I suppose we both turned a bit pale. Then, without a word, the gunner bent down, brought out his small pack, opened it and took out a very smelly pair of socks. He handed one to me; the other he stuffed into the hole on his side and I stuffed mine into the hole on my side! Somehow or other we felt much safer like that!
Fletcher, David. British Light Tanks 1927–45: Marks I–VI (pp. 31-33). Bloomsbury Publishing. Kindle Edition.