I think my current exasperation is more down to the fact I am regularly undertaking ticket inspections and attempting to make them as efficient and unintrusive for all concerned as possible. Instead of showing me their ticket I keep having individuals thrusting home made exemption cards in my face and then getting the hump when I say I couldn't give a monkeys about their card or indeed their exemption, I've asked for a train ticket as if my acknowledging it would validate it in some way.
The problem there is that it sounds like *you're* doing the right thing, but many other people in similar positions are not. Anyone unmasked who is approached by a figure in authority is going to assume that the first thing out of their mouth is going to be a comment about lack of mask, because most of the time that's what we're encountering.