School Joke: Horse and Zebra

[yetadem]

TEACHER: Akpos, can you differentiate between a horse and a zebra?

AKPOS: Yes sir.

TEACHER: (brings a picture of a horse) which one is this?

AKPOS: It's a horse, sir.

TEACHER: Excellent! (Now brings a Zebra) And which one is this?

AKPOS: It's still a horse sir, but now it's wearing pyjamas.