1) You can distinguish between a burned out carbon resistor and a fried transformer by smell alone. 2) You occasionally use a wet finger as a "voltmeter"
3) Your XYL can recognize your callsign in CW at 45 words a minute, even though she can't stand ham radio.
4) You don't know what the color of your wall is behind your QSL cards.
5) Your "procreative utensil" sports a scar from having had a blob of molten solder fall on it while soldering in your jammies.
6)"When the power bill for your amp exceeds your cellphone bill
7)When the new car is going to be a cherry picker
8)When you wake up and realize you are sitting in your shack, with you hand on your key, and have been sending "CQ CQ CQ de [your call] for the past two minutes