三人行，必有我师(焉)

成语
缩头乌龟 a coward, a (metaphorical) ostrich (lit. a turtle pulling its head in)
藏头露尾 telling only part of the truth (lit. hiding the head and showing the tail)
苦海无涯，回头是岸 there's still time to repent (lit. the bitter sea is boundless, turn your head to find the shore)
( ”pinyin” )

词汇
风险, risk (pinyin in tags)
https://mandarinbean.com/new-hsk-3-word-list/

Guardian:
情愿在这儿做缩头乌龟, you'd rather be a coward here
又何必藏头露尾的呢, why are you only telling part of the truth?
苦海无涯，回头是岸。只要你把从档案室偷取的资料交出来，我可以法外开恩免去你的罪责, the path to salvation is at hand. All you need to do is give me the materials stolen from the archives and I can give you amnesty for your crimes.
他们冒着被你撞破的风险亲身上门, they showed up themselves even at the risk of running into you

Me:
别藏头露尾了，我已经知道真相。
我不敢骑摩托车，风险太大了吧。

语法
少不了 + N/V "can't do without X"
https://resources.allsetlearning.com/chinese/grammar/Expressing_%22can%27t_do_without%22_with_%22shaobuliao%22

词汇
头, head/inside; 头发, hair; 点头, nod; 里头, inside ( pinyin )
https://mandarinbean.com/new-hsk-2-word-list/

Guardian:
[no 少不了]
我在梦里头，我梦见长城他回来了, in my dream I dreamed that Changcheng came back
大庆，你这头发跟这衣服是- Da Qing, what's with the hair and the clothes?

Me:
吃泰国绿咖喱的时候，少不了辣椒。
希望你别说话，只点头摇头。