AITA for ruining my shirt with paint?

So here is some information for the story!

I was at a library and they had a paint thing I didn't want to paint but my mom made me paint. I was painting and minding my own business as my mom said to paint as now she was pissed that I didn't paint at the second as she wanted to record for Facebook ot something. But I finished painting and a kid was using a water gun to paint with blue paint and the little spat got on my hot pink shirt. My mom got pissed, when tho it wasn't my fault.

UPDATE: The paint stained the shirt but it makes the shirt look nice I'm my opinion!