Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not enough information

My cup warmer was confiscated by security this morning because it had "For household use only" stamped on the back, which they say constitutes a safety (fire) hazard here at work. I got it back, but I cannot use it at work. There's no way to know if this advertized cup warmer will pass inspection here at my place of employment (since I cannot view the user guide online).