Dumpster diver...
Pizza Pete (in my world) = Guy who does jobs (e.g. networking, computers, etc.etc.etc.) but gets all his info via the Google-izer hours, or maybe minutes, before the actual job and, does the job for what amounts to 10% of what a qualified tech would charge, but thinks that 10% is really good money.
What usually ends up happening is that guy quickly gets overconfident, takes on a job that's wayyy over his head, screws it up, and the company that hired him in the first place, gets to call on somebody like me in the 2nd place to make a special trip to undo Pizza Pete's screw-ups, then finish the job the right way. Not saying that's the way it goes every time, but, ya, generally that's what eventually happens.
As another "for instance", somebody gets a bad LCD, google's the problem, finds out that re-cap'ing it might fix the problem. Seems like instantly said person is an "expert" on fixing anything and everything.