(Srsly, what was with that sniffling??)
The Latina songstress is SO SURE that her ex-hubby is a deadbeat Dad that she hired a private investigator to follow him!
The professional snooper exposed Nic as he "repeatedly demonstrated detrimental behavior and a lack of parental responsibility" after witnessing him taking the child out while sick, smoking around him, refusing to change his diapers, and leaving him unsupervised in a stroller repeatedly!
Sounds like an unqualified father to us!
In the end though, Paulina struck a deal with her estranged baby daddy that he keep a nanny around when he is watching the tike.
For the baby's sake AND for his, we hope Nic does what he is told!
[Image via WENN.]