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 telephone 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 Three 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 was really irritated and said: And… and… you Mick… Do you know who Sean O’Reilly is?
Mick: No

Paddy: Wel, he’s the fellow who’s been hanging around your wife for the past 5 months… and if you stopped going to night classes… you’d know this!