According to user bemyfuse, if you receive your drink with the order label slapped right over the chain's logo, chances are you rubbed the barista the wrong way.
"My petty joy is putting stickers on the siren logo when annoying teenagers order millions of fraps at once so their Instagram posts are ruined ¯\_(?)_/¯ It's the little things," she said, posting a picture for reference.
While it's unclear if other Starbucks baristas share this brilliant tactic, hopefully this revelation will discourage rude behavior and overly complicated drinks.