Can STDs be spread from sharing eating utensils with people while eating?

Seems unlikely. I've suggested that gonorrhea (like other diseases) might be transmitted from an adult to a child in a hot tub -- gonorrhea and chlamydia can infect the eye in an unhalogenated swimming pool -- and it seems remotely possible that gonorrhea might travel on a fork. It would be hard to prove that this was all that happened, and nobody's going to conduct a formal experiment. Wonder why you ask.