ad hominem argument
An informal fallacy in which one arguer uses a logically irrelevant "attack" on another arguer as a reason to disregard the second arguer’s argument. It is a fallacy of relevance. there are three types, Abusive, circumstantial and tu quoque.
Something that has been done to me plenty of times and unknowingly done many times too 
Added this logic book to my todo….let me see when this happens
