What is your biggest pet peeves regardless of the relationship to the person. For me it's lying about liking something I have bought/made for someone. I've had a few instances of this happening in my past. At least let me know you don't like something at the point of recieving/trying 😅 at least that way I'll know not to buy/make that particular thing for that person again. Another is being very judgemental my mum and one of my brothers can be like this and it drives me insane.