The dangers of a public Laundromat often lie in forgetting certain items. I recently forgot an almost full container of some fairly expensive eco laundry shit. I didn't recall forgetting it until the next day. Upon running back to the laundromat to get it, I blissfully found it sitting exactly where I left it.
Thank you laundromat users, for not stealing my expensive vegan laundry detergent. It brightened my day.