Handcuffs, zipties, duct tape. Restraints can be a fun part of your chroma-generation routine, but when they're used against your will, they can be dangerous. If you get kidnapped, even people without superpowers or physical fitness can escape if you know how.
[ Unlike most videos you can find, Riou doesn't bother talking for 10 minutes that no one wants to hear before getting to the point, so he lifts his wrists up and they're already tied with zipties. He explains that you want to put as wide an angle as possible between the heels of your palm, then slam your wrists against your chest or, if from behind, your butt will do the job. He demonstrates. A less painful way is tying your shoeslaces together around the ziptie and doing a pedaling motion with your feet to saw through it. This is easier for people who have less physical strength. Like this. These methods will both work with duct tape too.
It cuts to him in handcuffs then, behind his back. He has a paperclip and shows that you can actually just press the pin in the handcuffs alongside the ratchet with a paperclip or bobby pin if you have one-- this is called shimming. With the shim in, click the cuffs tight as you can and the shim will block the pin and allow you to release the cuffs. He doesn't talk much during this one, just showing. ]If you are unable to preform any of these, you can escape any means of wrist binding by dislocating your thumb.
[ Thankfully he doesn't do it. He's not going to do it unless he has a reason, but he does hold his hand up and show exactly where to push to do it for the video like he's going to do it. Please enjoy your near heart-attack before he stops. ]I don't recommend practicing that last one. Many of these methods will hurt, but in a life or death situation, the hospital is better than the alternative. Stay safe.