>Q: why does a train go faster in the night than on the track?
>A: because it's colder in the winter than on the outside.

I have to run - and will reply to more of your message tomorrow - but I had to say that I thought your old tag above was very funny from the first time I read it. Equating two incomprehensible clauses in both the question and the answer...now, that's comedy!

Renoir