For those of us without a disability, understanding the challenge users may experience when trying to use a computer can be a foreign concept.
Browsing Reddit, of all places, this weekend I came across this story of a user with ALS who created a patch for Eye of GNOME. The patch contributor’s son added a comment to the bug report (and a link to a picture) that is a must read. Go read it. Now.
more here 
and here