Never been guilty of that one myself BUT when my daughter Lorrae was about 7 years old she, being a VERY determined young girl, came walking home from School one day ( only about 4 blocks from the School to our house btw) with a little boy about 3 years old and said quite calmly to me, " I founded him walking along the footpath Daddy, he was all by hisself, can we keep him Daddy, please, please, please?"
Luckily I knew where this little bloke lived so I returned to his somewhat worried mother much to Lorrae's disappointment.