Sbarro complaint: Disgusting staff

Went in today staff member stood at till with fingers in her mouth ripping and biting pieces of her nails off then chewing it. I coul see the spit on her fingers. When I pointed out she shouldn’t b doing this she became defensive and asked what my problem was she wasn’t serving the food I did pint out that it didn’t look good for potential customers who was contemplating ordering food to see members off staff stood with fingers in their mouth with spit on. Both members if staff then started to verbally attack me. Said I only came in looking for trouble?? Now I have bee. Here a few times I have never caused any trouble and I also have to point out I had my 9 yr old grandchild with me and they were calling me a trouble maker etc saying only me in the whole world would think that some1 biting thier nails behind a food counter would b unacceptable. The whole service station started watching me I felt so uncomfortable and so disappointed in how I was treated