Woman: Do you drink beer?
Man: Yes.
Woman: How many beers a day?
Man: Usually about 3.
Woman: How much do you pay per beer?
Man: £3.50 (This is where it gets scary!)
Woman: And how long have you been drinking?
Man: About 20 years, I suppose.
Woman: So a beer costs £3.50 and you have 3 beers a day which puts your spending each month at £315. In one year, that would be approximately £3.780 …Correct ?
Man: Correct.
Woman: If in 1 year you spend £3780, not accounting for inflation, the past 20 years puts your spending at £75,600. Correct?
Man: Correct.
Woman: Do you know that if you didn't drink so much beer, that money could have been put in a cumulative interest savings account and after accounting for compound interest for the past 20 years, you could have now bought a Ferrari?
Man: Do you drink beer?
Woman: No.
Man: Where's your Ferrari?
(End of story in one sentence)