Waterford Crystal workers have occupied the plant after arriving to their shift and finding themselves locked out. Some scuffles broke out betwwen workers and hired security, recently beefed up to deal with labour unrest.
http://www.iht.com/articles/ap/2009/01/30/business/EU-Ireland-Waterford-Crystal.php
http://www.indymedia.ie/article/90898
Looks like a pretty positive action, I don't know to what extent the union Unite was involved (i.e official or wildcat) at the start, but now it seems they're supporting the workers.
Interview with waterford rep by a members of the cork branch of the wsm
http://ireland.indymedia.org/article/90941