re: #154 lawhawk
But he invented Klingonese.
One Klingon speaker, d’Armond Speers raised his son Alec to speak Klingon as a first language, whilst the boy’s mother communicated with him in English.[13] Alec rarely responded to his father in Klingon, although when he did his pronunciation was “excellent”. After Alec’s fifth birthday Speers reported that his son eventually stopped responding to him when spoken to in Klingon as he clearly did not enjoy it, so Speers switched to English