How can there be any connection between a leisure activity and Disclosure? There is none.
Disclosure only has to do with past form, nothing else. What leisure activities/clubs you belong to are nothing to do with them whatsoever. There was nowhere on my disclosure form to "admit" to being a shooter, or anything else that is non-subversive. No criminal past, no problem.
I rather fear this is yet another example of PC/H&S paranoia becoming so ingrained in our minds that we are allowing ourselves to invent all sorts of imaginary bans/restrictions where no such restriction exists in fact.
Its rather scary.