The interviewer placed a pen on the table. "Sell me this pen for ten thousand yuan."

The applicant picked up the pen and looked at it for two seconds. "Leader, can you repeat that last sentence?"
The interviewer cleared his throat and repeated slowly, "I said, sell me this pen for ten thousand yuan."
The applicant gently placed the pen in front of the interviewer. "Deal. This pen is now yours, ten thousand yuan. The sentence you just said was an oral offer; I accepted it on the spot, and the contract is formed. Cash or scan payment?"
Everyone in the room looked at the interviewer. The interviewer’s hand was hovering above the pen, not holding it. Then he smiled and asked, "When will you start?"