It's funny I used to be able to sharpen drill bits on a grinder but never got decent results with a chisel. I can no longer sharpen drill bits guess the eyes aren't what they used to be.
That said when I take the time to sharpen the chisels I like to get them really sharp. I'd like to say it's a Zen like thing or I get into or I find a zone but none of that happens. It's not something I particularly enjoy but I do like having chisels that are scary sharp.
On a related note on drill bits, my former boss, the troll, got a Drill Dr. He is incapable of reading directions (or as he calls them DIE-wreck-shons) since he's functionally illiterate and needs to sound out words out loud. Not all words just big complicated ones with two or more letters. He doesn't have the patience to sit through the video either but in typical ego driven fashion he just proceeds to sharpen them. It's really amazing how fast he can take 20 or 30 bits and reduce them to 1 1/2 or 2" stubs with no cutting ability at all.