I remember several of us Scouts being invited into the kit storeroom by an Assistant Scout Leader (in the mid-1960s). Once we were in there he closed the door and revealed his penis and testicles, inviting us to touch them. We were all severely taken aback and frightened, so we made a rapid exit. There was no follow up. Later I learnt that this ASL had written letters to several of the individual Scouts. He had then very rapidly thought better of this move and persuaded the Scout Leader to drive him to the homes of those Scouts so he could retrieve the letters before they were opened. I don’t know what the content of the letters was. Later this ASL tried to take his own life, failed, and later went on to study at university.