St Patrick's Day and nudity

Today is St Patrick's Day, the time of the year when it's traditional for Americans to pretend they're Irish, drink Guinness, talk about 'the craic' and dye the water going through Boston green. Or some such. I'm not well versed in this, because my knowledge of Irish Americans comes solely from films where they're either salt-of-the-earth blokes or dodgy tattooed scratters who'll feed you to their dog. Coming from the impoverished European island that is England, I had to content myself with Irish Irish people, rather than the ostensibly more glamourous American version. Irish Irish people are a bit like Irish Americans, except they don't go on about 'the craic' one day of the year, because they're all boozed out of their heads on Guinness. All of the year. And besides, I'm pretty sure that 'the craic' is something you get if you freebase 'the cocaine'.