1) A lot of reading
2) To what grade ?
3) None
4) A load of old men trying to justify a salary
5) Whats it doing ? not ring, or tamper faults or SAB battery needs replacing
6) when its to long
7) Binning Swann and yale kits as you need a waste carriers licence
8) Rotate the VHS tapes in the tape despensor
9) Never
10) See answer to 7