Amen. I get frustrated, and sometimes really mad on the course. Only if I'm having an absolutely awful day will I throw a club, and that's just to keep myself from breaking it. Also, don't mistake this as me blaming the club, I know it's entirely my fault but the club is already in my hands so....
People may call me and idiot or spoiled because I throw clubs, but you have no right to judge. You have no idea what I'm feeling at that particular moment in time, going round after round of playing poor golf(by some standards) and not being able to figure out the problem is the most frustrating thing ever.