I just saw this thread and finished page 1, and I'll just throw this out because it's at the forefront of my thoughts.
Before I get to it, good advice on page one.
Give notice, keep the whole process simple.
Ok, so I worked as an "intern" for GE Healthcare right out of Trade School where I got my AAS biomed tech degree. I wanted to go to work with the man and his company that I had done a few hours a week work for while I was in school, as part of my degree qualifications I had to find an internship in the field. As it turned out, I was able to work for him AFTER I got fired or "not invited to go to regular employment status" with GE once my 6 months "trial" as an intern ran out.
Ok..here's the good part, I only wish I could have executed my plan:
Most of the people I worked with at GE were backstabbing cowards, with no relationship skills. Their only concern was climbing the corporate ladder, and they would use the daggers they buried in backs as the rungs. These corporate WHORES would prostitute their mothers to get a promotion.
There was this one guy in particular, he looked 15 years older than he was, and smoked like a broken down Ford. He was eavesdropping on a call I was on with my wife, talking about a property in Florida we had seen. We were driving from Louisiana to Florida every few weekends to house hunt, as we intended to move there, on either the Crystal River or Homosassa River so we could go scuba diving with the manatees, boat, and fish, and all the other things to do in that beautiful area of still free America.
Anyway, this RAT TURD couldn't wait to run tell my big boss about me intending to move, even though I specifically asked him NOT TO, and although I had intended to ask about a position in the area in Florida we were moving to.
I wanted to use silicone (so it could easily be removed w/out damage) and attach a toy stuffed RAT to his workbench on my last day! I didn't really need a referral from GE as I was going to work with the owner and his business that I had done part time work for in school. The ONLY reason why I didn't get my RAT attachment done is because they let me go too suddenly to have the rat toy with me that day.
It turned out GREAT for me because after 3 years with the privately owned company, I had learned enough to start my own 1 man business. That was 8 years ago and I'm still in business.