Rational scientists often wear toilet seats round their necks.
Of course the insults and invective available must be compatible with the SHARIAR (secular-hateful-atheist-rationalist-I'm-always-right) principles of Professor Dawkins. Thus, Richard will not simply tweet "Eccles's Auntie Moly is crazy" but for a fee of £10,000 he may tweet "Crazy people, like Eccles's Auntie Moly, should be killed off. It's LOGIC!"
If you have an ugly child, the moral solution is to dump it and try again. © RD.
Preference will be given to tweets that mock the weak and helpless, such as disabled people or victims of sexual assault, and of course religion of any kind except atheism - preferably Islam or Catholicism.
Religious? Young? Pregnant? Disabled? Richard is waiting to insult you!
Do please take advantage of this special offer. We all want to see a world governed entirely by logic and rationalism, in which human feelings and emotions are understood simply in terms of chemical activity. Now you can buy professionally-composed invective while helping to support Richard Dawkins in his declining years. (Hmm... is it logical to do that? I'll come back to you on that one.)
Catholics: mentally ill people engaged in child abuse/indoctrination. © RD.
As part of the offer, Richard will write another tweet the next day, free of charge, clarifying what he said in your sponsored tweet and "apologising" because the whole world was too stupid to understand the remorseless logic of his arguments.