[Tonic watches him... and while he is obviously thinking about something, there is almost none of that meticulous, steel-trap calculation behind his eyes. he really must be in a very good mood.]

Well, you seem to be doing very well...

[he shrugs the shoulder that isn't attached to the arm that's being worked on.]

I don't think another dose would hurt you, if you're interested. It's just that, at a certain point, you will start to lose some of your clarity and awareness in exchange for more sensory input, which can get... overwhelming, I find.

[part of him thinks it would be fun to watch Tek teeter at the edge, but most of him is still wary of ruining his first, good experience with this sort of thing. besides, he doesn't think that Tek would trust him that much. so he stretches out the fingers of his good hand again, this time to hold them up as an illustration.]

I would say no more than five drops in one sitting. To be safe.