What does my dad talk so much?

Lol- sounds like he's just trying to help in his "dad like way" he wants to make sure you get it - even if he does go alittle overboard (im exhausted from just reading his response to the circuits question!!) he may also be showing off just a little his "extensive" knowledge! Either way it is great that he shows an interest and helps you out- the alternative would be that he didn't give a damn & as annoying as it may be i know which i would prefer!!