Good points. When I had a bike, I always worried I would crash into an oleander bush and have oleander blossoms forced down my throat. It'd definitely make the news... Motorcyclist poisoned in crash.
When I was little we lived near a dirt lane lined with 20 foot oleanders. An old wooden sign called the plants “La Donna Forest”. Being a Donna, I spent all my time playing jungle and fighting through those oleanders dodging the black widow spiders and horny toads. Never once got sick, just sticky.