If someone tries to dare you, prank you, or scare you into getting into a tight spot, just say no. You are not as flexible as you think, the laws of physics still apply, and there will be photos of the event to haunt you for all eternity.
Just look at this recent viral series. Twitter user @tpain_yo gleefully shared their throwback of being trapped in a toddlers swing after a dare gone wrong. The attempt ended with the fire department showing up to saw her out of the damn thing as she weeped: