for the love of Bob, why won't you talk? please? say something, anything, instead of staring at the instructor slack-jawwed. aren't you sick and tired of listening to me and the ROTC chick and the professor talking by now? are you afraid of being wrong or something? if you're wrong, the prof is going to make some smart-assed remark and move on to the next person. which is what he does anyhow. so please, please, get over it and talk; class will go much faster for all of us.