It's about being vigilant. I think I've already referred to that a few times, being vigilant to identify any situation. It's easy to say but not easy to do when you have to make hundreds of decisions each week. Be vigilant, try to make an effort and do not fall to the temptation of deciding to do it nevertheless because it's urgent.
Whenever there is doubt that there is possibly a conflict of interest, you should stop and analyze and recuse. It's always the best approach: When in doubt, recuse. Nobody will blame you for having recused. You could be blamed if you fail to recuse in a situation where you should have, under section 21 of the act.