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New Rule: Gay marriage won't lead to dog marriage. It is not a slippery slope to rampant inter-species coupling. When women got the right to vote, it didn't lead to hamsters voting. No court has extended the equal protection clause to salmon. And for the record, all marriages are "same sex" marriages. You get married, and every night, it's the same sex.

Dog, Sex, Gay
Bill Maher (2006). “New Rules: Polite Musings from a Timid Observer”, p.113, Rodale
New Rule: Gay marriage won't lead to dog marriage. It is not a slippery slope to rampant inter-species coupling. When women got the right to vote, it didn't lead to hamsters voting. No court has extended the equal