I think it's the whole host/guest thing, grubas.
You're right of course, Seanus. If I was the Krakow police I'd introduce a 36-hour incarceration period for these oafs, police to have summary powers, just time for them to pick up a few bruises, miss their planes, have to fork out for the return flight and
get to pick up the soap a couple of times for that nice fellow Bubbaski in the next cell.
I can't help suspecting, though, that in a year or so's time after the European Championships, those far-off days when a few dozen idiots got tanked up, barfed in the street and mooned a few grannies is going to seem like some kind of pre-lapsarian paradise.