There are many things which are obvious in retrospect,such as:
(1)If you are wearing "Thongs"
*,do not put your foot out to cushion the impact of a falling AVO model 8 !
*What other countries call "flip-flops",but are so-named in Australia to avoid confusion with Bistable Multivibrators! (2) "I know it's 2 AM.but,no,you can't read the grid drive on the PA stage of a 5kW AM BC transmitter with an Oscilloscope probe!"
(3) If it looks like Teflon,but starts to bubble after the transmitter has been on a few minutes,its probably Nylon!
(3) "Oh,Yes! That's the roofing sheet I just unfastened---------AAAAAAAIIIIIEEEE!!!"
(4) "You mean you don't put the Electrolytics that way round in a -24volt supply?------Why is it snowing inside?"