If water does not flow through your pump while the pump is operating the pump will "loose prime" what remaining water in the pump will boil from the friction of the impellor spinning, this will turn the water to steam and melt the plastic parts.
Also known as the pump has "Dry Run"
When the oil pressure drops for whatever reason, whether it's out of oil or just a failed oil pump, the camshaft, rod and main bearings are no longer protected by a film of oil and they self destruct in a very short time. In some vehicles it's as little as 30 seconds.
It drops.
it drops
Without counting the drops on the inversions there are 3 drops.
Drips
drops
Without the support provided by the tendon, the short bone at the tip of the finger drops downward at an awkward angle.
probably not alot
It drops.
drops
drops
You dead.