I can not only deny it but I have seen Red Sox fans scream and curse and never get bothered. Maybe some Yankees fans yelled back at them, after the Red Sox fans acted like one would expect and told Rivera's mom to go frakk herself... but otherwise, no beer was thrown.
Yankees fans have class, unlike Red Sox fans.
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"Laws that forbid the carrying of arms... disarm only those who are neither inclined nor determined to commit crimes. Such laws... encourage... homicides, for an unarmed man may be attacked with greater confidence than an armed man."-Jefferson