So!
My hands were removed during my violent exit from the aircraft, my dayglo glove’s are pointless, and trying to remember protection location water food, is the last thing on your mind from your last survival course as you try to swim ashore with a great white hanging off your left testicular.
Not only is waving pointless, so is shouting……. But we all do both when scared 😳 Best drop your pants, and bend over.
Won’t help you, but at least the first responder will have somewhere to park his bike 🚲……..😹😹