what's the difference between the debt-holder and the share-holder?why the debt-holder cares about the company's safety?

what's the difference between the debt-holder and the share-holder?
why the debt-holder cares about the company's safety?

debtholder是债主
sharehold 是持股者
我不懂经济
为啥债主关心公司安全
我觉得就像你借了同事10万块 然后他小样的和你说他要开游艇去亚丁湾 你也担心

为什么债权人关注公司的安全