When asked why, she grinned and said she'd never met a person who exited so dramatically and abruptly in all her working years. The resume was put away in the Reject file instantly. The way you leave an organisation is just as important as the way you go about finding a job. Exiting gracefully leaves not only a favourable impression about you among your colleagues, but paves people's opinions about you for your future. The industry is small.
People talk and people remember.
Your colleague may be your supervisor someday in the future. If you have already made up your mind to leave, be absolutely sure you're doing it for the right reasons. A higher pay may sound tempting, but in the long run, it rarely leads to job satisfaction. A fight with a colleague can be sorted out. Boredom at the job can be tackled with your boss.