Fuses ans stuff was : Lightbulb police?

They generally _hated_ my questions. For example in A-level physics... 'You told us last week that the hole current in a p-type semiconductor was really electrons flowing the other way. So how come the polarity of the Hall voltage does depend on whether it's an n-type or p-type semiconductor' (THat is a particularly evil question. It is actually impossible to explain classically) Mind you I had enough 'arguements' with said teachers over the years to realise they had very little clue about what was really going on. One classic was the time they told me that my method of measuing something (actually capitance) was a 'comparison' and not a 'measurement'. To this day I am trying to find a defintion of 'measurement' that does not involve comparison to a standard. And for the record _every_ respectable book I've looked in has agreed with me. -tony