White crystals...

It ain't a rock on the lady's finger for sure, but it is every bit Trimethylxanthine. It's got a half life of 6 hours in your body, and it's something that is more pervasive in our society, and certainly specific ones round the world as well than we realise. Probably the only thing that you can get on the streets without being arrested, staked-out, run to the ground, or locked down. It's lunch now, and I think I will go explore once more the wonders of this Trimethyl-whatever.