Life's like that in many things other than RC.  People get a bit of knowledge, and it goes to their head.  Typcially, it's all they have much knowledge about, although there are some who know "everything about everything".  Ever notice that they can drone on for a long time, but when you think about it, they didn't answer your question, just rambled on on something related that they did know. Most likely compensation for an Inferiority Complex. And of course, to make matters worse, some people are just wound too tight......LOL.</p>