When was the last time you dealt with your conscience?

When the question was asked in philosophy class, I just grappled with the meaning of "conscience". When I asked the girl next to me what it actually meant, she gave me the example: "When you for example see shoes in a shop and you want to buy them so bad but they cost way too much. So you feel bad. Then you don't buy it, but you also might feel bad that you bought it" While listening to her I looked out the window, asking myself: "Am I not confronting it the whole time?" I knew very clear, that the whole time I got reminded by you. But I painted on it talking about a different person and situation, since people who you know were looking and listening. Even though I manipulated it well, my mind was shifting through two parallels, which made my voice shake, my face turn red, my vocals get raw, not talking on point, looking left and right. Since I was still talking about you. Teacher:"do you have a example?" My hands grabbed my knees, repeatedly saying:"hm.." While I know the specific one real well.