"Fuck kid, you better know what them pills are," he growled. The he remembered her didn't want the poor thing to run away from him, he didn't want to scare her anymore. He reigned it in, using a more controlled voice. "You gotta be careful with that shit, it aint good for ya and my kid sister... you just better be careful," he warned, leading her outside.
Once they were standing in the fresh, open air, he sighed and looked at her. "Look Thompson. All I gotta say is this; dealin' is fuckin' stupid. It only causes trouble and if Ruby gets in trouble or gets hurt, or if you were to go an' get hurt on her..." he pursed his lips. "It just fuckin' sucks alright. There are bad people out there an' yer just this little, tiny, innocent thing..." he shoved his fidgety hands into his pockets and looked at her. She wouldn't be able to defend herself if someone attacked her and he cringed a bit when he realized he had just adopted another kid sister. "Fuck me," he sighed, turning away a bit.
"Listen," he finally said. "Anyone gives you trouble? Gimme a call," he shook his head in disbelief at what he was saying. "Just don't fuck up too bad alright?"