No, It is just difficult for me to explain ideas.
Plus, it was just an Idea based off of the definition of arrogance "having or revealing an exaggerated sense of one's own importance or abilities."
Specifically the "exaggerated sense " part. It just came to my mind that you can exaggerate yourself in a negative or positive way. Thus, you are arrogant about what you can really do, or the skill you have.
Ah, it wouldn't be 'arrogant', you would be 'overstating' your inability to do things. 'Arrogance' is very specific and describes 'conceit' or 'self importance', you can't use it to describe it's opposite... 'timidity' or 'meekness'. Overstating your inabilities is 'false modesty'.
I am good at English and words, I can write you a book if you'd like but dear me never ask me to do arithmetic or heaven forbid maths, absolutely terrible, can't even add without a calculator, I have number 'blindness' so forgive me if I correct your English, I'm not being nasty just doing the bit I can do!