B. when someone points it out to you at the worst possible moment?
I'm actually thinking I should prefer to notice my own stupidity myself, but then I may never actually notice it. See I said 'sod' in front of my boss omg! They are so gonna sack me (*smirk*), alright perhaps not the best thing to have said while having a conversation in close proximity. But I'm not sure shouting out 'you said sod' is gonna solve the problem, it just draws attention to it. Pretty sure this woman is lacking in the people skills area.
So try not to swear and be good there's only 7 days left, and I'm not going to get the job if I strangle my colleagues.
'Oh you've done all this wrong' she said. So worried I checked, cause my boss taught me to do it a different way. And it's not wrong at all, so I went back to tell her, in my most friendly way. 'I just checked this with blah blah, and it's ok we can use the Code my boss told me'. And she got really unfriendly about it. I do love a working environment, so friendly and warm.