*bro want to go his business in the toilet. If you know what I mean. :p*

Me: *reading aloud* Average age of inventory is Cover G, where C is the average cost of inventory at its present level and G is the cost of goods sold.

MG: *from the toilet* Hep! Noisy! Keep quiet.

Me: What? Hafal-ing formula here. You berak, keep quiet lah.

MG: No I am not. 

Me: Huh? If you are not berak, than what are you doing there then?

MG: Sitting down.

Me: Bongok!