Haha, most people insist on it and then are surprised it is a real word. I have yet to meet someone who has simply taken my word for it. To be fair though, I didn't believe the person who told me so there is that :P This is why I love the word though. It so embodies what I love about the English language. It's like practicality is a side thought that those who built the language take into consideration only if said practicality is convenient to the situation.