How many courses out there have locker rooms? My old home course had an antiquated yet serviceable locker room very few people knew about.
I'm thinking about the guys playing twilight after work who don't have a minute to spare. Either you wear your golf clothes to work, or you do your best to golf in your work clothes. That means if you work in jeans, you play golf in jeans.
In my example from yesterday, I don't think it would have been rude in the least, had the remaining 3 golfers on the green continued to play while Bunker Boy bounced back and forth. Heck, I expect that my buddies continue to putt while I rake a bunker, even if I'm still "away" on the green. An added advantage is that as they're doing so, I'm not feeling rushed to "catch up".
I tend to be more concerned about being rude to those that are behind us by holding them up unreasonably....