Brain tonic?

Unusually having a snifter unaccompanied, to get over my inability to answer much of University Challenge.

I thought I’d accompany an unexciting gin with with a suitably flamboyant tonic, which I hadn’t tried before, Fevertree rhubarb and raspberry. Not unpleasant at all, but not for strong flavoured gins, as it overpowers.

(Hasn’t made me feel less thick though.)