Board Thread:Questions and Answers/@comment-34434093-20180124180213/@comment-2001:558:6027:4:7D52:6334:8A44:8580-20180125133453

Yeah, and to add to that, Klein never makes any comments like that to Kirito in any of their subsequent meetings. In the context of that bit of dialogue, it's easy to tell that he's just joking with Kirito.