I think if somebody tried to get the 141 to vacation or visit with them in America for the fourth it’s surprisingly likely that the whole thing would go horribly.
Soap would accidentally knock into a grill during a barbecue and light the grass on fire, probably from either learning or playing American football—or from playing “regular” ol’ soccer football.
Gaz would be right there with him—not because he’s inconsiderate, but just because he gets competitive when it comes to sports (especially against the Scotsman).
Price would probably be the least problematic, complimenting the house of the host(s) and absolutely devouring all food served to him until he can only sit all hunched over on a bench feeling bloated.
Ghost? Well, I’m actually not too sure about him. He might be right there with Price—probably has some good manners taught by his ma. However, his intimidating demeanor might scare off the children at first. When they get used to him, though, the “cool tall motorcycle uncle” (whether or not he’s actually related to anybody there, through marriage or otherwise) is encouraging them to do all sorts of naughty things—from spraying guests with water guns to teaching them about “the importance of the vagus nerve” so that they keep trying to chop Soap in the neck.
(Soap wins most if not all drinking games and can’t even stand by the end of the party)