During a couple of hours 11. feb 2012 my account was emtied for about 3500 EUR in four transaction (several more was tried) from a transaction named "Brilliant-Nakts klubs". I used Internet to find that this must be the "Gentlemans club" called Brilliant club. They use helpers at pubs etc in Riga to get in contact with objects they can bring in a condition with alcohole/drugs to get hold on/info about your creditcard.
Be aware of fiendly people in this town; moste of them only want to get to your money. Do you want to party; go somewhere else.
Regards from a person who never come back.