When I worked doing implementation analysis for a big timeclock firm, I had the clients calling me on the weekend. The company line was "They have to be directed through the business channel." which essentially meant "We have to get them to pay a support fee."
Well, I was the kinda guy that if they had a really simple question (like if they were standing at the clock wanting to know a configuration code to reset something), I would give it to them and tell them "This call never happened...ok?" and they understood I was doing them a favor.
If the problem was indepth, I'd just tell them there was nothing I could do remote for them and they'd have to call support and pay the fee.
I even had one client who had this really cool pair of people running their HR show and they had a timeclock go down (at a really nice resort). So I told them "Well, I'm driving back from Oklahoma. I can stop by and check it out on the way back if I could get a room for the night. Brian, the manager, said "Heck, you can have one for the whole weekend if you want!" Given, this was in December right after Christmas, so it was off season so it was pretty quiet...and, the company support said they couldn't get a consultant in until after New Years.
Needless to say, I had the best place in the hotel for the weekend free because I went back and did an hour or so of work free...and, I helped restrain a drunk dude who was breaking stuff on their pool deck too. I even made friends with the police there :)
But yeah, I could have gone independent and made tons doing consulting...I was just afraid I couldn't drum up the business to live off of.
I am thinking about starting my own firm now. I can legitimately make tons consulting here because it's growing so fast and there are no real computer experts in the area other than maybe the people I work with in tech services and support.
Even the guy at Staples had no idea what Double Data Rate Ram was...until I said "Uh...DDR SDRAM?" and he was like "Yeah! I saw that over here on a package."
Amazes me...glad to be a big fish in the small pond again. ]:)