On Monday, a little second grader marched into the teacher’s office, announcing, “I’m Tatsuyoshi from second grade and I’m here to see Chika-sensei. May I come in.” After a few moments it was clear he was just bored, and two teachers had the following conversation:

「本当に用ないでしょう」
「ようなし」

which prompted a round of laughter. Your goal is to explain why it’s funny.

The prize if you win? One can of 100% barley malt beer – e.g. Ebisu, Suntory Malts, Asahi Premium.

Please do not post your answer in the comments. Send it to me via email or facebook. My email address is るぱんさんせい (romanized) at-mark gmail dot com.