Looking out for number one

Little boy left for hardly 15 minutes
The sitter had gone to the store for some cigarettes and soda
When she returned she saw the fire engines in front of the house
She saw the smoke & flames
She found out that the little boy she was babysitting had lit his little brother's crib on fire
The baby was burned to death
He used the matches she had left on the table
He had heard that the only child gets more attention from the parents
With more love & extra dessert
He was only looking out for number one