Econs tutorial today...
Mr Chua: Neville, explain what is barriers to entry
Neville: Hmmmm... Barriers to entry... You know when you go into carpark, you see the barrier?
Whole class laughs
Neville to Sam: Eh what's BTE!!!
Sam: It's something that prevents...
Mr Chua: Neville?
Neville: Oh right. Yeah the carpark right, you put your cash card in the thingy
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