"Explain to me Severus," Theo drawled when the silence had dragged on for too long. "Why I shouldn’t kill you? We have a very serious quality control issue. I don’t want meth in my pills. I want them all to be gorgeous when the bougie little fucks use their test pure kits. Or if you cut it, it needs to be with something fucking experimental that doesnt show up and also doesn't fucking kill people." Theo’s voice was calm, but his intent was clear. Severus was aware that he was on thin ice and said nothing, merely looking at Theo in apprehension. Severus had been Slughorn’s assistant when Theo had put a bullet between the old man’s eyes when he’d taken over all these operations after Nott Sr had met his sticky end. Snape had seen Slughorn’s pitious mewling before his end. Theo didn’t do mercy when it was time for someone to face the consequences. And Slughorn had only been stealing a tiny amount of pills to give to social connections, but theft was theft.