![In-N-Out employees are fed up with the secret menu. In-N-Out employees are fed up with the secret menu.](https://images2.minutemediacdn.com/image/upload/c_crop,w_5000,h_2812,x_0,y_222/c_fill,w_1080,ar_16:9,f_auto,q_auto,g_auto/images/GettyImages/mmsport/mentalfloss/01j3n7tns71y996rvcxw.jpg)
![Jake Rossen Jake Rossen](https://images2.minutemediacdn.com/image/upload/c_fill,w_180,ar_1:1,f_auto,q_auto,g_auto/shape/cover/sport/Mental_Floss_Logo_2017-9c6ed4b5bdff37d2ceec5e2cf216cabc.png)
Jake Rossen
Joined: May 6, 2013
Jake Rossen is a senior staff writer for Mental Floss.
![In-N-Out employees are fed up with the secret menu. In-N-Out employees are fed up with the secret menu.](https://images2.minutemediacdn.com/image/upload/c_crop,w_5000,h_2812,x_0,y_222/c_fill,w_1080,ar_16:9,f_auto,q_auto,g_auto/images/GettyImages/mmsport/mentalfloss/01j3n7tns71y996rvcxw.jpg)
![Olympic gold medals are the zenith of athletic achievement. Olympic gold medals are the zenith of athletic achievement.](https://images2.minutemediacdn.com/image/upload/c_crop,w_5472,h_3078,x_0,y_506/c_fill,w_1080,ar_16:9,f_auto,q_auto,g_auto/images/GettyImages/mmsport/mentalfloss/01j3jvf3cf18g0k316r0.jpg)
The 20 Countries With the Most Olympic Gold Medals
![The Nintendo World Championship Cartridge The Nintendo World Championship Cartridge](https://images2.minutemediacdn.com/image/upload/c_fill,w_1080,ar_16:9,f_auto,q_auto,g_auto/shape/cover/sport/the_nintendo_world_championship_cartridge-0129a80f19504ba337ea9a2f3a9cf274.jpg)
An Ultra-Rare Gold Nintendo Cartridge From 1990 Is Up for Auction
![The Pattersons left everything behind in 1957. The Pattersons left everything behind in 1957.](https://images2.minutemediacdn.com/image/upload/c_crop,w_2121,h_1193,x_0,y_54/c_fill,w_1080,ar_16:9,f_auto,q_auto,g_auto/images/voltaxMediaLibrary/mmsport/mentalfloss/01hzk27je0jwqng5h6dn.jpg)
The El Paso Enigma: The Disappearance of William and Margaret Patterson
7 Things You Might Not Know About ‘Harold and the Purple Crayon’
The 1955 children's book by Crockett Johnson has some interesting ties to Sharon Stone, Spike Jonze, and Communism.
20 of the Best TV Shows to Stream on Amazon Prime Video Right Now
From ‘Fallout’ to ‘The Lord of the Rings: The Rings of Power,’ Amazon’s streaming service has something binge-worthy for every taste.
This $45 Million Stegosaurus Is Now the Most Expensive Fossil Ever Sold at Auction
"Apex" is among the most complete Stegosaurus specimens ever discovered.
When Speed Streak Tried to Turn Hamsters into Toys
Tiny race cars running on hamster power angered animal advocates.
Why Do Pick-Up Truck Beds Have Grooves on the Sides?
Pick-up truck beds are here to make your life easier—if you know how to use them.
The German Navy Is Finally Phasing Out Floppy Disks
A fleet of warships is still running on 8-inch floppy disk power.
Why Does Flushing the Toilet Change the Shower Temperature?
It's what every shower-taker dreads—but it doesn't have to be this way.
This Popular Trader Joe’s Seasoning Is Illegal in South Korea
Travelers arriving in South Korea from the U.S. have had a Trader Joe's staple confiscated from their bags.
13 Facts About Richard Simmons
An anonymous note left on Richard Simmons’s car window changed the soon-to-be-superstar’s life forever.
8 Enlightening Facts About Dr. Ruth Westheimer
Sex therapist Dr. Ruth Westheimer—who passed away on July 12 at the age of 96—used television, radio, the written word, and the internet to speak frankly on topics relating to human sexuality.
Kid Lit: When LA Gear’s LA Lights Sneakers Created a Frenzy
The light-up sneakers were coveted by ’90s kids, but some adults considered them a public health hazard.
The 20 Best Movies Streaming on Max Right Now
From dystopian sci-fi classics to recent Oscar contenders, the best movies now streaming on Max run the gamut.