A fantastic example of how destructive a force workers' unions are for a business.
British Airways just recently lost 292 million GBP over a 6 month period, and its two pension schemes have a combined deficit of 3.7 billion GBP. Management is handling this by freezing pay and downsizing: 1000 employees have already left on voluntary redundancy, while 1200 more need to leave.
The union's response? An 11-day strike over the whole Christmas and New Year period, ruining the holidays of a million customers who now can't get tickets on any other airline because everything is booked out.
Edit 2009-12-17: A judge declared the strike illegal based on a technicality. Thank smurf.