You’re right, but it’s all relative and almost anything could kill you. Eg, vaccines are also a fantastic answer to the title question. They undeniably save lives and are extremely safe. But they can still kill you in very, very, very rare cases. I’m not sure any answer to this thread could have a nil chance. Even the video games answer, there’s been people who got so addicted to video games that they played them till they dropped dead (but that’s obviously an utter insane extreme and obviously video games are very, very safe).