In 2009, Scott MacIntyre became the first blind person on American Idol, leading to a hilariously awkward moment with Ryan Seacrest. After MacIntyre performed and received a golden ticket in the first round, he came out of the audition room, where Seacrest was waiting. Seacrest then attempted to high-five him, before remembering MacIntyre wouldn't be able to see his hand and slowly lowering it.
You can tell by the easily bruised egos.