I've worked dozens of MAYB games. Overall, I love the work. There are isolated instances of crap like this, though. What was interesting about this particular game was the fact the head coach was in my ear on two previous occasions during the game acknowledging how much his team was fouling and praising me for the way I handled one of his disgruntled/disrespectful players at mid-court during free throws.
I had the coach on my side. Grandma-fan was insanely lost in all the "drama". She should have sought a debriefing with her grandson's head coach before approaching me. But, that is ok. I was confident in how I managed the game. I'm ready to pizz her off next weekend - or whenever she dares to watch me work again.