Always do this over an ashtrayburning particles can flare briefly
Besides, we remind you that Article R.645-1 of the French Penal Code establishes fines applicable to fifth class contraventions (except in the specific cases of a filming, show or exhibition which refer to historical events) for any individual who wears a uniform, insignia or symbol reminiscent of those worn by members of the various organizations declared criminal in application of Article 9 of the Charter of the International Military Tribunal annexed to the London Agreement of August 8, 1945 SS, SD, Gestapo, Nazi leaders (the Fhrer, the Reichsleitung, the Gauleiters and their main collaborators, the Ortsgruppenleiter, the Zellenleiter and the Blockleiter), or reminiscent of those worn by any person found guilty, by a French or International Jurisdiction, of one or several crimes against humanity established by Articles 211-1 to 212-3 or mentioned in Law No
Once they're absorbed into the leather fibers, they can be difficult to remove
The short answer is no, cigarettes do not have an expiration date