One day, just to make sure he remembered what I taught him, I asked, "what is bola in English?" "Ball", he said.
"Okay, how do you say rumah in English?" "House". I'm impressed but he became bored quickly, so I asked him a final question.
"What do you call 'momok' in English?"
"Michael Jackson!", he said confidently!
(Apparently earlier that day, he had watched a video clip of Michael Jackson's Thriller on the tv. He asked the grandmother who was that and she said "Momok"!)
*Momok means ghost