Solax, or oath-swearing is an interesting can be humorous and informal or deeply serious and ritualistic. Learn more about it here on ROMBASE: didactically edited information on Roma. http://ling.uni-graz.at/~rombase/cgi-bin/art.cgi?src=data/ethn/belief/oath.en.xml
For the record, The Corner House in Cork City, Ireland is my favorite pub, or God grant that I will die in that pub in front of the fire place with a lovely hot port on the tree-slice table before me.
Image from: www.panoramio.com