Is This Retaliation Against A Mother Fighting Domestic Violence and For Custody of Her Child

A Mother, in the vicinity of Broad St./Nashua Mall area today, was interrupted by her door bell around 2:20 PM. She ran to the door to find this brown paper bag with a note on the outside, stating it was from a secret admirer. Inside was dog do. A call to the Nashua Police proved futile. A neighbor reported seeing two young boy's, around 11 or 12 year's old walking up and down the street with the brown bag.
Could this have been in retaliation of the Mother's fighting Domestic Violence  and custody dispute with her ex-husband, or maybe even her lawsuit against the state of NH? Were the two young boy's paid off, bribed to harass the mother?
If anyone has any idea who these boy's are or who put them up to this please e-mail me.