This type of discussion is typical. If all goes well, no worries, Signed Language is so beautiful, how can I learn to sign? and so on. If there are problems, Deaf people are used to rough treatment. And if they complain they are told off not to be so sensitive, that what they say is not correct, or they get the silence treatment.

It seems there is something like an impedance mismatch between Deafies and Hearies and sometimes the sparks fly furiously.

C'est la vie.