"Learn to say: I do not know about this/that. You cannot know everything that gets presented to you. The bad habit comes when the same technological asset appea

"Learn to say: I do not know about this/that. You cannot know everything that gets presented to you. The bad habit comes when the same technological asset appears for a second time and you still do not know how it works or what it does." Absolutely. I've seen so many junior engineers / devs go on about it like this: Someone higher up: Could you please look at this problem? I need it fixed ASAP. Jr. Engineer, presented with a problem he's never seen before: No problem, I will look into it! Someone higher up (the next day): Did you fix the problem? Jr. Engineer: Sorry, I haven't still gotten around to look at it / I'm still working on it / etc. Someone higher up: We really need it fixed today, please prioritize it and give me a call when it is fixed. Jr. Engineer works on the problem all night, feeling stressed out, not wanting to let down his seniors.