XX Female logic backfires

Lady: Do you smoke?
Man: Yes.
Lady: How many packs a day?
Man: 3 packs.
Lady: How much per pack?
Man: Ten quid.
Lady: And how long have you been smoking?
Man: 15 years.
Lady: So 1 pack cost £10.00 and you have 3 packs a day which puts your
spending each month at £900. In one year, it would be £10,800 correct?
Man: Correct.
Lady: If in 1 year you spend £10,800 not accounting for inflation, the past
15 years puts your spending at £162,000 correct?
Man: Correct.
Lady: Do you know that if you hadn't smoked, that money could have been put
in a step-up interest savings account and after accounting for compound
interest for the past 15 years, you could have now bought a Ferrari?
Man: Do you smoke?
Lady: No.
Man: Where's your fucking Ferrari then?