Through an unlikely and irrelevant series of events, you have just inherited (after taxes etc) 51%+ of the company in which you work. Nobody else within the company knows this. What do you do?
Retire and live off the income.
I work for a BIG corporation.
I’d buy a Ferrari. Maybe two.
I’d be one of the most influential people in Canada.
Ain’t gonna happen any time soon.
Depends on how you define “where you work.” I work AT a USPS data processing center, I work FOR Northrop Grumman. If you mean the USPS, “it is legally defined as an “independent establishment of the executive branch of the Government of the United States”, (39 U.S.C. § 201) as it is controlled by Presidential appointees and the Postmaster General.” Since I “own” 51%, then I’m the President. w00t.
OTOH, if you mean Northrop Grumman, I’m just really, really, really rich. Cash out before I have to accept too much karma for building drones.
Not much. Running something that huge that often makes the most money by losing money is beyond my skill set. I may sell out or just sit on the shares but I wouldn’t try to make myself something important or take a title or anything.
(Amazonian here)
I work for a private company whose founding owner died a couple of years ago. I’d attempt to get the corporation back on track to where it was focused on during his lifetime because it truly was a great place to work while he was here. The company used to focus on excellence and research into making better products that people actually said wow about, bottom line be damned, if the product was subpar it didn’t get released. Now it’s more about growth and profits; excellence is starting to take a second row and I don’t care for that. I’d rather work at or own a smaller company that made great products than a large company that makes mediocre products in order to maximize profit.
If we’re talking about my current employer, it’d be another case of having almost more dividend income than I could spend in a very determined lifetime. Since it’s publicly traded, my shareholdings would not come with any right or responsibility to become part of management.
If we’re talking about the small business I was formerly the junior partner in, it’d consist of summarily firing all the suddenly-no-longer-senior partners’ cronies and installing competent people. And conniving a way to remove, and ideally pauperize, said now-junior-partners.
Either way, it’d be a lot of fun.
^ This. 51% of the shares at my current employer would be worth about $4.5 billion and generate dividend income of about $75 million per year.
So I would do whatever I wanted to do.
I worked for a large truck leasing firm. They spent a good amount of money on training each year but the training was almost entirely ineffectual. They know this and have continually tried to approach it from different angles. I would simply make them approach the training aspect from my angle.
I would be the single richest person in the world, as I work for an extremely large corporation. But as no one person owns it, I could hardly inherit it.
I would, of course, be forced to buy a monocle. And a sports team. Maybe a country or two and a battery of Senators.
Inheriting the company where I work would involve my death. 
Don’t forget the yacht.
Buy new furniture.
See how much profit I could get by selling off the whole thing. Proceed from there…
I work for the government, so I guess if I own 51% of it, I’m god-queen of New York City! I will bend you all to my will, peons.
I often say that if I ever win the lottery I’d buy the company I work for, then gleefully shut it down. Sorry boss, you’re out of work 
Fight the urge to run away screaming, then sell the business and live off the proceeds.
Since I work for a small company, whose primary owner has a son I work with, plus the VPs are all shareholders, it would remain a secret for all of zero seconds.
I don’t know that I’d make too many changes, actually. I really like where I work.
Micromanage my boss to see how she likes it.
I would be worse off than I am now.
I was a public school teacher in Illinois.
Enough said.