Overheard in a Class Room...

A classmate introduces himself to the class:

Classmate:
“大家好！我是ＸＸＸ！我曾在ＹＹＹ公司做ＵＦＯ！＂

Ah Teck: (Muttering)　Kua Dio Gui 阿！

He meant "Chief Finance Officer (CFO)"...