DS was recently diagnosed with a sensory disorder. This manifests in strange ways. At the moment, I am not allowed to say the word "that"...apparently with my accent it sounds as "thut". If I am in my house with him, he will hit me and pinch me hard whilst yelling "say "that"properly." He has to hit me three times.
DS2 has a natural lisp and he is not allowed to say words with s's in, unless he gets a nasty shove or his hair pulled three times.
He can control this behaviour. If in public, he will come up behind me and pinch my arm in secret until I acknowledge I have said "that" wrongly. He wouldn't dare hit or yell in public. He is not offended by anyone else's accent, just mine and his brothers.
However, I simply cannot control the way I talk. I can't chance a mannerism I have had for forty years. DS2 has now started sounding his s's as a "sh"sound for fear of getting hurt. I have tried to explain that I understand how much it grates on him, but he needs to change his reaction to the perceived annoyances.
Any ideas or strategies would be so welcome.