<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=Content-Type content="text/html; = charset=iso-8859-1"> <META content="MSHTML 6.00.2900.2180" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=#ffffff> <DIV> <DIV><FONT size=2>Cy Shuster wrote;</FONT></DIV> <DIV><FONT size=2></FONT> </DIV> <DIV><FONT size=2>"Not every jet engine mechanic can fly, nor can = every pilot maintain a jet engine.  Most likely neither own their own jet, yet = they are around them every day, and typically see many different types of = jets. " </FONT></DIV> <DIV><FONT size=2></FONT> </DIV> <DIV><FONT size=2>You raise some moot points here. I always considered = that a piano tuner who does not play the piano would not be much good as a = tuner. There are plenty of tooners I know of who do not actually play. But then that = very same jet engine mechanic that you mention, not only doesn't have a = plane, but most likely can't fly one either. </FONT></DIV> <DIV><FONT size=2></FONT> </DIV> <DIV><FONT size=2>Does a surgeon or undertaker have a few bodies = at home to practise on?</FONT></DIV> <DIV><FONT size=2></FONT> </DIV> <DIV><FONT size=2>Just a thought.</FONT></DIV> <DIV><FONT size=2></FONT> </DIV> <DIV><FONT size=2>AF</FONT></DIV></DIV></BODY></HTML>