There is no first attack in Karate. Karate is an aid to justice. First control yourself before attempting to control others. Spirit first, technique second. Always be ready to release your mind.
Accidents arise from negligence.
Do not think that Karate training is only in the dojo. Karate is like boiling water. If you do not heat it constantly, it will cool. Do not think that you have to win, think rather that you do not have to lose. Victory depends on your ability to distinguish vulnerable points from invulnerable ones.