Thought I'd try this ... guys, just one sentence about what NOT to do as a Hobbyist. What is your one absolute, cannot break it for anyone, Hobby Rule?
Let's try not to repeat a rule, and save the agreements and adoration for PM's.
Mine: As with Gambling, when considering a consultation, if it wouldn't bother you to throw the Consultation Fee out of the car window at 80mph on GBT, then you are good to go consulting.