[He knew it would come with these kinds of questions, especially if Tobias knew about the fact it was essentially a poison.]

Its the only way to get the drugs to work. [He coughs slightly, fingers still casually toying with Toby's silky hair.] Burns out the lining of my lungs, puts it straight into my blood stream... too much might kill me, but I've been doing this long enough to get the balance right.

[He licks his lips, reaching out for his sports bottle and taking a thirsty gulp.] Was a bit of a joke tellin' the guy who got it for me it was what I need it, better stay on his good side or he'll be the perfect person to use it against me.