Tim makes a small, non-committal noise at that, and drops it - because the response itself is sticking in his mind, the tone and content of it. Why would Tom have had cause to haul him out as soon as he walked in? He's old enough to be there and hadn't been getting into anything suspicious right away. No, the only reason to do that would be if Tom knew him, and didn't want him getting tangled up in anything in the first place. But hadn't acted on that. Because Tim doesn't know him.

Or not quite.

He spends the walk and subsequent climb to the apartment in silence, both dizzy and unsteady, and thoughtful. All the little ticks are lining up, puzzle pieces fitting, but the picture is a little off still. And if he's wrong, he really doesn't want to get too weird on Tom out in the street or dark alleyway.

Tom, Tom, Thomas.

He waits until they're actually in the apartment, small and bare and ringing of safe house, before speaking up. In his own voice, though if this approach backfires, it'll be difficult to blame that part on the drugs like the rest of it.

"You're using your father's name."