Who is the most horribly observant person you have ever seen in the workplace?

Our department is an operating department, and the leaders are more taboo about saying stop, red, etc. A colleague who had not been in the department for a long time went to the office to collect documents. When he came back, he told us that the little girl in the office left a yellow folder for our department. After her repeated requests, it was changed to green. In response to this , the leader is very satisfied.

Later, I asked her curiously, how do you know that the leader doesn’t like yellow? She said that the leader has never used anything yellow, including clothes, and deliberately avoids it. He definitely doesn’t like yellow clips. , I just changed it to green on my own initiative.