Mannequin

Mannequin is an option in Completing the Mission during the "Cleaned 'em Out" ending.

After Henry Stickmin has stowed away on board the Toppat Train, but is about to be caught, he quickly freezes up and pretends to be a coat rack. Thomas Chipz and Filbert Philbert find him, fall for the trick and Thomas begins to play around with him a bit. While doing so, Thomas sticks Henry's head out the open window, where it hits an obstacle (likely a tree or sign) and gets smashed clean off Henry's body, killing him. This results in a fail.

Fail Message
Press F to Pay Respects

Fail Transcript
"Whooaa, check out this crazy coatrack!"

"Oh, look at me, I'm a little hat holder person."

"Ooo, can I take your hat?"

"Ooooo, I wonder what's out the window! Hahahaha..."

"Awww, it broke."

Medal
Pressing the "F" key on the keyboard or clicking the "F" in this message will result in "losing" $1000 while awarding the "Respects" achievement.

Trivia

 * The pose that he using as mannequin is a reference from the statue from Stealing the Diamond.
 * The achievement is a reference to the popular Press F to pay respects meme from Call of Duty.