Vali [Question]

I recently ordered a pair of Vali lancer in 18 oz white, but there was weird black piece of debris (it looked like a dropping or like a small circular piece of charcoal) on the inside of the plastic where the gloves were. It ended up staining the white gloves black on a small area.

It’s not a big deal, I suppose, but I was wondering if anyone had a similar experience if they’ve ordered from vali? I still can’t tell if it’s an animal dropping or something else. Any idea what it could have been? I wish I had taken a photo, but I threw the piece away.