S5: Ep.15 At Ruby's Saloon Lex is seen as a threat, likely to bring a lynch mob after Ram. So Slade has handcuffed him to the bed. But take a look at how tight they are - especially Lex's left hand. You could drive a bus through that gap! Sure, Lex is testing how secure they are - see, he's pushing his arms outwards. OK if you want to break the chain yeah, go ahead. But if I were in handcuffs, I'd tuck my thumbs into my hands and try to pull my hands through the cuff itself. But Lex mustn't do that 'cos he'd get free. Heck, you would need to be Houdini.