Collaborative Laboratory Services

What an awful service I had. First off, I come in and the lady at the front just comes rushing in from another room loudly saying sign in and then walks out then about a minute later says come in! And when I come in she rudly says 'I thought you heard me to come in after you sign in ' and on top of that this woman insults my choice of college that I'm going to and the field that I will be working in and ON TOP OF THAT she was so rough that my arm is black n blue. Never going to this place again. HORRIBLE!