Mick: I've been going to Night Classes every night for 5 months now.
Paddy: oh!
Mick: For example, do you know who Alexander Graham Bell is?
Paddy: No
Mick: He's the inventor of the phone in 1876;
If you took night classes you'd know this.
The next day,
Mick: Do you know who Alexander Dumas is?
Paddy: No
Mick: He's the author of "The 3 Musketeers".
If you took night classes, you'd know this.
The next day, once again:
Mick: And do you know who Jean-Jacques Rousseau is?
Paddy: No
Mick: He's the author of "The Confessions"
If you took night classes, you'd know this.
This time, Paddy got irritated and said:
And you Mick ... Do you know who Sean Reilly is?
Mick: No
Paddy: He's the fellow who's bonking your wife?
If you stopped going to night classes, you'd know this!