'' The ''what if'' line of thought is second only to the ''what is'' line of thought. That is to say, what if I didn't respond to the call for feild doctors on Leeds? what if I didn't join up and instead went to trading or piracy? The answer is of course, I don't know. No one does, what is, is the fact that I did join up. I did become a BPA officer. ''What if'' is a rather pointless question really.'' He paused to look at her with a smile ''Where am I going?, that is much more sensible''