Annoying People

Have you ever met any of those annoying, pessimistic people? who keep shooting down ideas, saying "I don't think we should do that", or "nolah, don't think so" and "No, i don't think that will work out". What's their problem? How can there be people who is so damn enamoured with the word "don't" ?! At the least, common decency dictates that they should at least offer an alternative to an idea they shot down, or even cough out the reasons why they don't like it so. But NOOOO, they only know how to stagnate the whole process, saying no to everything. If these people can only reject, without giving out an alternative, how can we go on? Its true that the optimistic invented the aeroplane, while the pessimistic invented the parachute, but its really really grating on my nerves. There's this fellow at my school who is exactly that. Sometomes i just want to whack that irritating face of his. Always has this look of dissatisfaction about, like he's not happy to be wasting time with us, doing essential schoolwork. Always sulking around and mucking things up. Darrrgh!!