The drug testing results are not as clear as what they may seem though.

Related plants can leave chemical traces that are close enough to give false positives, especially for a test that isn't designed to distinguish between them. Tobacco is part of the nightshade family, so related Old World plants might give a false positive. Mandrake can also leave similar chemical (iirc alkaloid) traces to those of cocaine.

He's also got a very good track record in predicting electoral outcomes.

Um, he predicted that we would have a Republican House and Senate and then got whiny and defensive when the NPR reporter pointed out that the polling didn't support that prediction. Iirc, he said "You've got your math - I've got THE math."

If you want to get _really_ geeky you can always start riding the wierd bikes too. Recumbents, Tandem, Tricycles (or any combination of the above) all add to the variation - and there's nothing quite like following a recumbent tandem trike to realise how much road prescence a 4' wide, 15' long HPV can have.

Also have a look at the serious end of Human Powered Vehicles for extreme geekiness. Some of the latest speed machines don't have windows - you use a fibre optic camera to a flat-screen display on the handlebars as that improves the aerodynamics.

At the other end you have the Minnesota groups who race ice bikes on the frozen stuff up there every winter and keep it at the reclaimed scrap end of technology (but with just as much innovation when it comes to finding something that will grip on ice...)

Lots of stuff on the geeky end of bicycling at http://www.ihpva.org
A UK based magazine on the wider aspects of cycling around the world is Velovision
http://www.velovision.co.uk

There's even people who ride unicycles off-road (Muni - mountain unicycle - they call at) and a US company, Haluzak, who have been making off-road recumbents for years.

For interesting extras I've had on my bikes over the years the Air Zound (120 Db+ air horn - pumped up by a bike pump) and the Mountain Drive (extra low gears contained in the bottom bracket - really does let you haul heavy loads up mountains) are my favorites.