Free beer

I've just received an e-mail telling me that I've won a free pint in Ember Inns' NovEmber Beer Festival. I simply print off the voucher in the e-mail. I wonder what's to stop me printing a dozen vouchers?  These are the beers on offer:

• Thornbridge Wild Swan white gold pale ale 3.5%
• Stonehenge Old Smokey malty and dark 5%
• Project Green - the freshest beer in the land 4.5%
• Davenport's Fox's Nob deep copper ale 4.4%
• St. Austell Black Prince fruity black mild 4%
• Brewdog Trashy Blonde statuesque fruity ale 4.1%
• Copper Dragon Black Gold a 19th century recipe, 3.7%
• Liberation Ale all the way from Jersey, 4.0%
• Fraoch Heather Ale, with real heather, 5%
• Alton's Pride, Champion at the Great British Beer Festival 3.8%
• Wolf Brewery Granny Wouldn't Like It, fruity and dark red, 4.8%
• Rampant Gryphon, sip gently, 6.2%!

It looks a rather good selection. My nearest Ember Inn is the Railway, 7 miles away in Formby. I'll hop off the train next time I go to Liverpool.