It's so silly, so I know IABU.
But it's getting to the point now that each Friday I get a knot of tension in my stomach while waiting at the school gate. And each week DS comes out (totally oblivious to my neuroticism) and I have to ask him within 5 mins if he got star of the week, and he says no.
My heart sinks.
Some have had it multiple times, some like my DS just once. But why don't the teachers just do it equally 
I know, I know I'm a grown up and IA totally U