The sign said (probably, I didn't look) they were collecting for the Round Table or British Legion or some other such worthy band of genuine do-gooding souls. These travelling troupes come a-wassailing every year, but never until within spitting distance of the loathsome day itself. So, I'm pretty sure this gang was not the genuine article and I fully expect to see more of this odious sort of thing - thugs preying on your charitable urges - unless you all get a grip and give them the bums' rush until the proper time.
Anyway, just to show I can be charitable too, I wrote some new lyrics:
No, go away and let me get back to sleep!