Tell me the most useless fact about Portal you know. This can be about the lore, the games themselves, the development, etc

Tell me the most useless fact about Portal you know. This can be about the lore, the games themselves, the development, etc
Did you know that Portal 2 has a recurring synth tune in many of it's songs? The tune reacures all throughout the whole game, up until the very end! Here's a some-what chronological list with all of the songs.
So Gordon has the HEV suit and that deals with his bathroom needs But how does Chell go to the bathroom? She doesn't have fancy armor.
Theory: Portal was only written into Half-Life's lore as a way to justify it's blatant reuse of various Half-Life 2 assets.
After 10 days, this is the final result of the portal gun designed by the community: The first change was created by: @thatguy And the last one made by: @1yng-gamer
Ever think it’s weird how apertures technology somehow advanced, after years of decay and neglect?