Spatter.
That’s the name for blood splashed on a window.
They always get it wrong in movies. To get the splash of blood they show, you need to cut an artery. Better yet, a deep chest stab will leave a splash of blood on the ceiling. If you cut off a limb, the blood gushes out in time with the heartbeat. Jet…Jet…Jet…Jet
Those are the only ways to get the kind of blood spray they show in the movies. Every time they show some guy get punched and spit a wad of blood they’re just being dramatic. A punch will leave drops of blood maybe five millimeters across. From a baseball bat, the drops are about two millimeters across. From a gunshot they’re even smaller, nothing but a fine mist. (Continued)