Never Die Alone

Trivia: DMX plays Michael Ealy's father in this film, even though in real life he's only three years his senior.

Question: How do they draw blood from a vein with a syringe, or inject a liquid into somebody's arm or neck? It doesn't appear that the needle is retractable, and you can see the liquid/blood being injected or drawn. If it's a closeup, it could be a fake arm, but many times you can see the person as this is being done. This appears in many movies. Anyone actually know?

ZipWin

Chosen answer: I used to have a "magic trick" syringe - the syringe has a double wall so that there is a tiny space around the outside that actually fills up with fluid from a reservoir in the syringe, the middle of the syringe (majority of the volume) remains empty, but it looks full.

Myridon

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