Be careful

Today at the store I was asked by an old man if I wanted to sell my oldest (6 yr boy) he looked serious but at first couldn't tell if he was terrible at making jokes so I just said no and walked off fast (my LO was coughing so my attention was also on him) while watching him but then I was like "That's a weird question to joke about" I didn't see him around store again while I kept an eye out for him and I didn't think to tell an employee (dumb I know) or even take a photo. I just want to say mommas be careful. Keep your babies close. I had my oldest in shopping cart while dragging it with one hand and pushing my babies stroller with other. This was in RGV Texas. Just giving a warning that freaks out there.