In terms of smell that is pretty much the most disgusting thing you can acquire free. I always thought would be extremely butyric but Stinky's Best sets throughout the crown. I have a friend a vial to his birthday gift packaged, hoping he would open sometime and think of me. Think again, he has the same ampoule broken and the party was blown up. The stench is unbearable, so much that even a has passed. My conclusion is therefore, can be better simply locked away and never use at parties. Nevertheless 5 stars because it does exactly what it should, and the much better than expected.