The "End"
The final third of your cigar will be when the smoke is at its strongest. This is the time to part company before flavours become bitter and the effect of the cigar on your well-being may become detrimental. There is absolutely no need to stub or grind a cigar out to extinguish it. Left in the ashtray it will go out by itself: if you stub it out, it will release foul odours into the room. Once the cigar has self-extinguished remove any butts and ash from the room before they start to give out unpleasant smells.