Big Trucks: If Only I Could Create the Venn Diagram

So, after extensive research I've come to the conclusion that:

All drivers of BIG Trucks ≠ Rednecks

The Proof: I saw a BIG truck on Mopac with a Ultimate Frisbee sticker on it!? Wot?! 

Or perhaps it simply leads to an alternative theorem:

All Ultimate players ≠ Hippies

The Proof: I saw a BIG truck on Mopac with an Ultimate sticker on it, remember?

Conclusion: either there's a subset of the hippie population that does drive BIG trucks, OR there are some BIG truck drivers/lovers who are actually hippies on the DL . . . .