Purple

When I was little I would take walks with my grandpa around the park and sometimes we would find strange looking things on bushes. One day as we were walking and I happen to notice bushes that contain what looks like blueberries. But was it actually blueberries? Well to this day I still don't know what it was. All I remember is I tired my best to gather every single one of them for my grandma, but since I had small hands I didn't pick much. As we walk home my hands started getting stained by the "blueberries". I started wiping it on my clothes just to get the stain off, but when I got home I was covered in purple stain and it didn't come off for several days.