Two colleagues finish their lunch in the canteen.

The first, after cutting a pear in half, aligns the pips on the table. His colleague asks him why he is doing this.

– Don’t you know that pips eaten separately make you smarter? answers him first.
– Well, can I try?
– OK ! That’s 4 euros per pip. Since there are eight, you owe me 32 euros.

The guy pays and eats the pips. Suddenly he says:
– Still, you take me for an idiot! For 32 euros I could have bought myself several kilos of pears!
– You see, the pips are already having an effect.