Annoying Habit

I just caught myselve typing "dd if=/dev/zero of=/dev/sda" on one of my test machines... luckily I did't hit the return key .. I use the above mentionned command to make sure a device boots from network after I reboot it hence bootstrap again, looks like I have been testing that kind of stuff too much recently ;)
A reboot did just fine to get this machine in to 2.6.15-openmosixbeta ;)