This happened three years ago when I was 18.
I was at my friend's house, Alex, and after a dull afternoon of playing guitar and video games, we decided we'd do something else. I noticed he had loads of bb guns and the like and suggested we had a little shoot out around his house. He lived in a big house and his parents were at work till late.
Anyway we stocked up on ammo and took our positions. After a while of shooting, I noticed I was out of ammo and would have to sneak back to his room to stock up once more. I made it there and I was about the open his draw where everything was when he suddenly caught me from behind and said "hands up". I did so and he took my pistol from my hand, then reached for a pair of handcuffs and brought both of my hands behind my back and applied them. He then escorted me to his garage with his hand on my shoulder, all the while holding the gun in my direction.
I wasn't quite sure what direction the game was taking now, but I went with it. It's not like we had anything better to do. When we arrived there the first thing I noticed was a pole right in the center. He put me down on my knees and undid my cuffs and told me to take my t-shirt off and then put my hands on my head. I was now shirtless, wearing only my blue jeans, a belt, and trainers. He then lifted me up and placed me in front of the pole, with my back to it.
He brought each arm behind me separately, around the pole, held my wrists in place, and dug through his back back to pull out a roll of duct tape which he used to tape my wrists together. He then did same to my ankles, and said to me "looks like I've won". He then took a stip of tape and put it over my mouth. I slightly "mmphed" while slowly breathing through my nose, with a very slight struggle from my wrists. Noticing this, he grabbed me by my chin and said "it's hopeless", followed by a "don't worry, I'll be back" before leaving the garage and shutting out the lights.
More soon...