Isn't it like any other derogatory words people of all religions use either when surprised or angry? This question is far from stupid. Whether things are going good or bad, our Creator's name is used. Never do we hear "Damn Satan!" Never do we hear "Satan damn it!" Satan has worked very hard at turning people away from God and blaming God for every bad thing that happens in their lives. Satan told the very first lie and lies permeate the world today. Who is Satan? Satan is the spirit creature who is the chief adversary of Jehovah God and of all who worship the true God. (Yes, just as the Devil has a name, humans have names, plants have names, animals, birds and fish have names so too, God has a name.) The name Satan was given to him because of his becoming a resister of Jehovah. Satan is also known as the Devil, because he is the foremost slanderer of God. Satan is described as the original serpent, evidently because of his using a serpent in Eden to deceive Eve, and for this reason "serpent" cam to signify "deceiver." In the book of Revelation, the symbolism of a devouring dragon is also applied to Satan. There are many more subjects that the Bible teaches us about. I invite you to learn about a few of them. Go to the international website, jw.org and Bible Teachings > Bible Questions Answered. Watch videos such as: Does God have a Name? (Ps.83:18) What is God's Kingdom? (Daniel 2:44) Why did God Create the Earth? (Genesis 1:26-30 and Psalms 115:16) Why did Jesus Die? (Matthew 20:28 and John 3:16) and Why Study the Bible? (Isaiah 48:17+18 and 2 Timothy 3:16+17) If you believe what you learned, you can request your free personal Bible study online or from the next witness who knocks on your door or by visiting your neighborhood Kingdom Hall of Jehovah's Witnesses. There is never a collection taken and all are welcome. Thank you for this question.