I made a quick change to the "brawl" script so that you can now type:
hit brawltest and if that script is attached to that room, thus allowing brawling, you'll get a message: "Yep, you can brawl here.".
In a room
with brawling enabled:
Quote>hit brawltest
Yep, you can brawl here.
In a room
without brawling enabled:
Quote>hit brawltest
They aren't here.
Yes, it's possible that if someone had the keyword 'brawltest' you'd end up whacking them, but I seriously doubt anyone will. And I don't expect anyone to abuse the code to add this keyword.