The "idea" came from your own post where you repeatedly mentioned it and drew a line based on you personally knowing why the gm is telling you that the "normal dog" is affecting your PC. Here it is again without the quote tags
"If a DM asks me to make a Wisdom saving throw I'm going to assume there's some supernatural effect. If they tell me that I have to make the saving throw because in my background I was once scared of a dog and Fido, a totally normal dog, just came around the corner I'm going to disagree with the call. On the other hand if Fido is really a Yeth Hound and just used their Baleful Howl ability it's fine because they are baying magically. On the other hand if a Tarrasque walks around the corner my character might be turning tale and running"
Also why is it that all of these posts espousing depth of roleplay and absolute author level player control over a PC seem to think that the only way the world could possibly affect a PC is through fear? The ways that someone could be directly or incorrectly affected by the world or something on it are endless awe alarm shock disgust sorrow rage/anger doubt/certainty respect for deeds/social standing/position organizational backing/etc. the list is absolutely endless.
The fact that the GM is telling you that a "normal dog coming around the corner is affecting your PC in ways that seem odd for the apparent situation should be a strong reason to take action and use skills to look into understanding why... Demanding the option to nosell that based on being in the "mood' to be affected or knowing that it's obviously overly magical sidesteps the need to actually play the game and make actions that might put your PC at risk of unknown consequences or have a chance of it being a thing your PC is bad at in ways that result in leaning on other PCs who may be better skilled at those things... Demanding the answer has zero risk for The Star PC at the table and wotc has even in helped me ensure that the only person who could look unreasonable is the gm who shuts down that unreasonable player demand for both absolute control and on demand metaknowledge
I don't want the DM telling me what my character thinks or feels unless there is a magical or supernatural effect cause. Nothing in D&D 5e indicates that the DM can or should tell a player what they think or feel. According to the rules of 5e a player may be asked by the DM to make a persuasion or intimidation check to determine an NPC's reaction if the DM chooses, it does not automatically succeed or fail.
That's it. Play how you want but no matter how many times you ask my answer isn't changing.








