I answered
33%

It's probably more like 15%, but didn't want to go with 0% since I do roll through them from time to time.

I got an auto-fail on my license test for "not coming to a complete stop at a stop sign", Even though I took off in 1st gear and was driving a car that it's impossible to get into first without coming to a complete stop. Was pretty frustrated at that one, given the examiner's excuse of "you aren't stopped if you don't apply the park brake". Who applies a park brake at every stop sign they come up to?