Quote Originally Posted by PuffTheMagicDragon
...Like the others said, snuff it out when it isn't good anymore.
No one said snuff it out.

Do not attempt to snuff it out.

Just set the cigar down and let it go out by itself.

Once a cigar has run its course, it should naturally extinguish itself. It's poor cigar etiquette to "butt out" a cigar as it will create an unpleasant odor for everyone around you.
~ cigar tips