Fair warning for those that are sensitive to vulgarity, for this post will need to use some to properly quote the individual involved. Comedian Robin Williams was on the "Tonight Show" Thursday, and used the occasion to make fun of Rush Limbaugh's recent Viagra incident. To be sensitive to those that might be offended, all obscene quotes will appear in the "Read More" section. Now, to be fair, I am a huge Robin Williams fan, and believe him to be an equal opportunity offender. Even Rush, who has a fabulous sense of humor, likely would think this was funny (video...