Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Very Dangerous Mat!!!

I also fell using this mat. Although it feels very cushiony, the suction cups DO NOT STICK! I fell pretty hard using this mat when I turned around and hit my head. Luckily my head is hard. But I immediately pulled it out and through it away.I had one of these years ago and now remember why I got rid of it. Very dangerous item.