15 minutes per shot

10 minutes per cigar

Do it for 50 years.

$50years=(50yr)(365{\frac {day}{yr}})=18250\,day$

$1\;dailyCigar=(18250\,day)(10{\frac {min}{day}})=182500min=18250{\frac {min}{1}}{\frac {hr}{60min}}{\frac {dy}{24hr}}{\frac {yr}{365dy}}$

$=1\;dailyCigar=.347yr\;({\text{off your life}})$