The reason we have a forum is to talk, ask questions and offer help to others who need it. If you have better things to do than answer a question repeatedly, then don't answer the question. Someone else who doesn't resent doing so will surely pop up and do it for you. No-one said you had to answer every single question in this forum. Sometimes biting your tongue and not saying anything is more helpful than biting remarks like "doing homework" and "many of us have better things to do". These sorts of comments could make a real beginner rather dubious about posting their comments and questions in this forum. And we want the beginners to feel comfortable and welcome, not stupid and inadequate. Just my 2 cents (which in Australia doesn't mean much s)