I once spent about 20 minutes explaining that Intelligent Design was not a valid ‘science’ to a Muslim apologist who was arguing the opposite. Someone asked me if he could expound upon the points I had made and I was happy to allow him to take over.
I have never tried to teach a theist any science since then and I insist on only debating or discussing the nature of their beliefs instead. All apologists will try to avoid explaining what they mean by ‘god’ and try to get a debate on Evolution going instead, which never leads anywhere.