Query about infection from blood. B?

Hello Doctor, today I was scheduled to take my 4th dose of anti Rabies vaccine. But to my surprise, while breaking the sterile water ampoule, the compounder pulled out the dustbin under the bed to throw it in and without washing his hands administered the vaccine in my arm. I noticed that there were used swabs with blood stains thrown in it. I am so anxious now that if any blood from the dustbin would have come on his fingers and he also touched the swab he used to inject me with those hands. Can I get infected with HIV, or Hepatitis B or C? I have been vaccinated for Hepatitis B but that was in 2003, in 2008 I had taken a booster of Hepatitis B. Do I need to take another booster for Hepatitis B? Please advise. Thanking you, utmost regards.