Teacher's Have It Hard

I am an undergrad TA for organic chemistry and I can finally understand why teachers get angry at students for not being able to answer their questions. I get some really dumb questions that if only the students would read the textbook they would know the answer. It's really trivial and I refuse to answer such questions. When they really don't understand the material or the questions I am happy to answer it but please people put in some effort. I can't do all your work for you.