Random thoughts on a hiring ads

The other day my electronic dictionary  was low in batteries again, so I replaced  those dying batteries with the new ones  which I bought a few days earlier. As my dictionary worked again I noticed that  in our everyday life  batteries we use  always come in even number, but things that need them to work usually need them in odd number.   So you can tell that those manufacturers are smart, that they want  you to buy as much as possible.  The truth is that in order to maximize profits, business people always rack their brains to  get awesome ideas to increase their sales. This gives me a hint that one day if I became a manager of a cleaning company, in order to save my cost on  purpose of maximizing my  income,  I would write my hiring ads as the below:  Help wanted, a cleaning position is available, having a love of cleaning is considered as an asset (it is said that people with obsessive compulsive disorder make great cleaners, bookkeepers, and inventory stockers)  :D  kidding.