We (pedestrians and me) both manage to occasionally irritate each other without any targeted effort on either part.
If their walking/trotting 5 abreast, chatting and not paying attention, or taking Rex out on the MUP without a leash causes me more than a fleeting annoyance (assuming no physical contact occurs) that's really my problem, isn't it?
By the same token, if they continue to hold hostility for me and my 700l LED after I've passed them and despite my efforts to make it as unobtrusive as possible consistent with my own well-being, that's their own problem.