Aye, what all of these guys said^
While it does correlate oddly with a recent discussion thread about warriors, I can say that this isn't an uncommon occurrence, and it doesn't always happen with warriors, either.
Floofs like that do need to keep the game rules in mind, though, even if they are just confusing roleplaying with being a bum-hurt to some innocent floof hanging around. ._.
In that scenario, I believe it's best to do this:
1.) First, tell them kindly, and calmly that you aren't there to roleplay, and you're just hanging around. You won't be a bother to them, so they don't need to worry about you.
2.) It's also wise to remind them nicely that they can't actually claim territories in public maps, and you have as much of a right to be there as their Clan does.
3.) If they persist, go ahead and take screenshots of the conversation. PM those to a mod so they can handle it accordingly.
There's no need to get offended or angry with them. So long as you're controlling your own speech and emotions, staying within the rules and being respectful as is necessary, there's nothing you need to worry about.