Out of 20 malaysians, 18 like to ask alot of crap(I.e. How come so expensive?). Out of this 18 16 like to bargain the price. Out of this 16 , 11 of them likes to test(Could take literally hours). Out of 11 of this 10 of them will always say "Err... maybe i come back next time to buy".
And of course the remaining one will walk out of the shop with what they want.