The blind man healed had once seen
- Mark 8:24
no, wait- he had been blind from birth
- John 9:1
I find it interesting that the story according to Mark shows that jesus had to try twice to accomplish sight "restoration" and his account ends with the man being told not to go into town and tell anyone.
John's account is much more colorful and has jesus succeeding on the first attempt. John's jesus doesn't need any do-overs. And once the man is healed, he goes immediately into town and tells everyone. Big-mouth.