Meh seeing somebody getting bottled/glassed isn't that fun. Bottles tend to shatter pretty well so there is no doubt some collateral damage when a bird gets some glass in her eyes or gets a tiny cut (lots of screams and a huge fuss about it) then a further fight breaks out mostly caused by there boyfriends. Glassing tends to cause massive cuts that bleed all over the place. Its strangely cliched.
The worse thing of all is when glass gets in your pint or you spill your drink in fight errupting.