I think he's forgetting that he's not just any person...he's your dad. It's sad dude. Sometimes it literally takes one to actually *know* one, and I'm realizing stuttering is an example of this. Even family ties don't always bridge that gap. All I'm saying is that I guarantee if he went through this himself, he wouldn't have said those things. Honestly, a lot of human actions are selfish...even those of parents. He might say he's trying to prepare you for the real world etc., but it just seems like the resistance, not wanting to feel uncomfortable, and lack of empathy in him speaking. From my relationship with my dad, I see that it's like he's been conditioned/conditioned himself to not take what I say seriously when I stutter or to have a natural resistance against me (it's not a coincidence that he gets more easily angered at me when I stutter). What I'm saying is that he's probably conditioned himself over the years to act the way he does and breaking the cycle might not be easy. This might sound silly, but perhaps write him about this? About how his respect, love, and positive attitude towards his son should override his futile 'tough love' attitude. You could ask him to meditate on the fact that he wouldn't be doing these things if he went through stuttering himself. I notice I tend to have less fluency at home: you can also tell him that his negative feedback towards you could just reinforce your stuttering, so he isn't helping anyone by doing that.