Kami, it's not that we assume things from MS will crash, it's that we've come to expect it given their track record. All the office versions have had misc "issues"....
I attended the MS "Xtreme" presentation last month (live from Redmond broadcast all around the country and the world). While doing the presentation of Office XP , one presenter had Excel "hang", and had to end the application through the task manager. Embarassing to say the least