Kuala Lampur, Sept. 1 -- Every now and then, I find myself doing something that probably makes very little financial sense.

It usually happens at a nasi kandar restaurant (yes, the one in UM) after lunch. One of those places where you enjoy your meal first before walking to the cashier, telling them your table number and settling the bill afterwards. There is one particular restaurant I visit from time to time, and over the years I have developed a small habit there.

Before paying for my own meal, I quietly ask the cashier to include another table in the bill.

"Table number?" the cashier asked, casually.

"Table number 21, please. And 5 too," I answered, typically.

Not every table and all the time, of course. Usually it is a family wi...