Why would you do it at cruise speed? Not hard to do but not necessary.
If one had a 'chute and wanted to bail out - which is the reason that the 150 aerobat had the quick release. But, that is somewhat off topic. I guess I tend to wander.
but I can imagine all of that cactus getting thrown in with me!
Riding shotgun in a company car, windows down, elbow on the window sill (it was a nice day). Someone turns in front of us, driver swerves off the road(way to fast to stop). As we hit the curb, 3 or 4 tires blow, now the car is pretty much ballistic. I see the chain link fence coming and decide I don't want my arm out the window. In fact, I don't want to be anywhere near that open window and flop down to the left onto the bench seat, close my eyes, and cover my head. It gets real noisy for a while, then quiet.
I hear the driver in the absolutely shakiest voice I have ever heard... "Geoff? ...Are... are... are you all...alright?
I sit up 'Yea, why?" Then I realize that I (and the B pillar) are covered in glop - grey and red stuff from some kind of berry from the bush on the other side of the fence.
He thought it was my brains and blood and I was dead.
So, yea, wouldn't have wanted that to be cactus - or the ocean (to get back to topic).