Just pondering really...
In Wales we are only allowed 2 households to bubble/meet each other over Xmas. So, say I meet my parents but don't see anyone else but my parents decide to see someone else over that period, therefore breaking the 2 household rule. Its highly unlikely anyone would report them of course but if one of us caught covid maybe track and trace would end up finding out?
Would we (theoretically) be in trouble as we unknowingly were part of a larger household bubble than allowed?