Alright.. I was just teaching them 'Reproductive Systems'. Gave the kids the diagrams and while writing the notes the following conversation ensued (not real names)

Anita: Ehh.. Girls own fine pass boys own.
Mary: Ehn.. Boys own is scatter scatter.
John: Which kain..boys own fine pass jor.
Anita: It's a lie. You did not see as boys own is join join.
James: But girls own is hard to draw.
John: Yes. See now now I have finish our own. I don't even know how to start this one.
Jude: You don't know girls wahala are too much?
Anita: Is you that know o. My own is that boys own is not fine.
Jonn&Jude: Ehn leave it for us.

..after thinking of the right time to come in and shut them up without drawing attention to their utterances, all I could say was:

"Stop making noise!"