That is pretty funny, and being that I'm a court reporter I've actually seen it before! And trust me, when you're sitting there trying to be quiet and write everything they say, sometimes you just want to BUST out at the answers. Also in my "court reporter" magazine, they have funny transcripts like that probably monthly or bi-monthly....pretty humorous what some people say....
I can't think of anything off the top of my head that I've had a witness say, but I know there have been those moments!