Getting something out of the back of my truck today, I noticed something that looked like grass growing in the debris that had accumulated. On second look, not grass, but seedling palm trees just emerging from their crowberries. Of course I saved them in a plastic bag and planted them. I need some palms across the back fence, and this is as good a way as any. Maybe they'll make it, maybe they won't.
So yeah, people in other places may find random weeds growing in the back of their pickups. Here though, it's palm trees.