I just read about someone getting new contact lenses. She made an interesting statement. She advised her readers not to spit on their contacts because you could get pink eye.
I've heard about that boxer who got a really bad infection after he cleaned his contact lens in his mouth, but I'd never hear of spitting on your contacts.
Also, I've never heard of that pink eye thing. Perhaps she meant "infection" in general, not conjunctivitis in particular.

Can you get pink eye from your own saliva?