This a conversation between a man and his wife.
Woman: Do you drink beer?
Woman: How many beers a day?
Man: Usually about three.
Woman: How much do you pay per beer?
Man: £5.00 which includes a tip
Woman: And how long have you been drinking?
Man: About 20 years, I suppose
Woman: So a beer costs £5 and you have three beers a day, which puts your spending each month at £450. In one year, it would be approximately $5400 correct?
Woman: If in 1 year you spend $5400, not accounting for inflation, the past 20 years puts your spending at £108,000 correct?
Woman: Do you know that if you didn’t drink so much beer, that money could have been put in a step-up interest savings account and after accounting for compound interest for the past 20 years, you could have now bought an airplane?
Man: Do you drink beer?
Man: Where is your airplane?