i'm the one

A boy went to a telephone booth, which was at the cash counter of a store, and dialed a number. The store-owner overheard the boy's conversation:

Boy: "Lady, Can you give me the job of cutting your lawn?"

Woman: (at the other end of the phone line) "I already have someone to cut my lawn."

Boy: "Lady, I will cut your lawn for half the price than the person who cuts your lawn now."

Woman: "I'm very satisfied with the person who is presently cutting my lawn."

Boy: [with more perseverance] "Lady, I'll even sweep the floor and the stairs of your house for free."

Woman: "No, thank you."

With a smile on his face said "Thank you" and put down the phone.

The store-owner, who was listening to all this, walked over to the boy.

Store Owner: "Son...I like your attitude; I like that positive spirit and would like to offer you a job."

Boy: "No thanks."

Store Owner: "But you were really pleading for a job."

Boy: "No Sir, I was just checking my performance at the job I already have. I'm the one who's mowing that lady's lawn."