Mark Zuckerberg is perhaps the most popular CEO in the world. His accomplishments at 32 years old were staggering. Moreover, he’s also a philanthropist who has donated billions of dollars to medical research through the Chan Zuckerberg Initiative. But it’s important to know that like everyone else he’s still a human being with weird quirks. Read on for some unexpected facts about the Facebook founder.
1.) His signature T-shirt costs $300 to $400.

Every day, you can catch Zuckerberg in a grey T-shirt, a hoodie, a pair of jeans, and some Nike sneakers. There’s a reason he wears the same thing every day. He wants to clear his life to make it so that I have to make as few decisions as possible about anything except how to best serve this community.
Turns out, Zuck’s iconic grey T-shirt, made by Italian designer Brunello Cucinelli, costs a whopping $300 to $400.
2.) His dog is a celebrity too.

Beast, a Hungarian sheepdog, has his own Facebook fan page with more than 2 million followers.
3.) He can’t be blocked on Facebook.
If you attempt to block Zuckerberg or his wife Priscilla Chan, an error message will appear that reads, “this profile can’t be blocked for now.
4.) He’s a fitness buff.

Zuckerberg set a goal to run 365 miles every year.
5.) He’s colorblind.
Facebook’s logo is blue because Zuckerberg has red-green color blindness.
6.) He’s a polyglot.
He’s always been interested in ancient languages such as Latin, and he can speak Mandarin.
7.) He declined various offers to sell Facebook from tech giants.
Many tech giants are fascinated with the idea of acquiring Facebook — NewsCorp, MySpace, Viacom, Yahoo, NBC, Microsoft (again), and Google all put their hats in the ring — but Zuckerberg is firm on keeping Facebook.
8.) He and his wife’s first meeting was in a bathroom.

Zuckerberg and his wife Dr. Priscilla Chan met for the first time in line for the bathroom at a fraternity party at Harvard.
9.) He rides simple cars.
Despite his billions, Zuckerberg has fairly inexpensive taste when it comes to cars, reportedly driving a $30,000 Acura TSX and a Volkswagen Golf GTI.
10.) He can’t be blocked on Facebook.
If you attempt to block Zuckerberg or his wife Priscilla Chan, an error message will appear that reads, “this profile can’t be blocked for now.
12.) The Social Network

A movie was made about Zuckerberg and the birth of Facebook called The Social Network.
13.) He almost worked for Microsoft.
When he was in high school he created an app called Synapse Media Player, an MP3 player that kept track akin to Spotify.
Microsoft sought to acquire the company and offered him to work for them, but instead, Zuckerberg got a patent for the tech and went to college instead.
14.) He declined various offers to sell Facebook from tech giants.
Many tech giants are fascinated with the idea of acquiring Facebook — NewsCorp, MySpace, Viacom, Yahoo, NBC, Microsoft (again), and Google all put their hats in the ring — but Zuckerberg is firm on keeping Facebook.
15.) Zuckerberg’s parents hired a computer tutor.
In his childhood days, his parents hired a computer tutor to work with the young Zuckerberg, but the tutor admitted that it became difficult to stay ahead of his pupil, referring to him as a “prodigy.”
16.) He has a huge budget for security.
It costs millions of dollars to keep Zuckerberg safe. In 2017 — an estimated $7.3 million to be exact was spent on his security. The figure was in a regulatory filing Facebook submitted to the U.S. Securities and Exchange Commission, which noted that funds for his security plan — including trips made on a private airplane —