An interview scene today:

Me (interviewer): Ok so tell me this.

Candidate: Umm, aaaa, blaa blaa blaa blaa, this and that.

Me: But I didn't ask you this.

Candidate: I don't know the answer to that but I know blaa blaa blaa blaa, this and that.

Me: It's okay if you don't know the answer to my questions, we will skip to the next question.

Candidate: Ok.

Me: Asks how "X" works and why should we use.

Candidate: Umm, aaaa, "X is a .." blaa blaa blaa blaa, this and that.

Me: Okay, I already know what "X" is, please tell me how it works and why would you use that.

Candidate: Umm I don't know, but I know X is blaa blaa blaa blaa, this and that.