I was in a situation about 6 months ago where a friend offered me a machine made. He knew I was a cigar smoker and had gotten a fresh box. I appreciated the gesture and didn't want to offend him by telling him that I only smoke premium cigars. Needless to say the sweet tip and acrid chemical taste that took my mouth by hostage was just too much. I took one draw and quickly found an excuse to immediately remove myself from the situation.
Lesson learned and never again...
