Therefore, do not forget to setup your time-manager. Easy, first visualize processes in 27-dimensional space then add one dimension. Assume that a peak is a sphere in order to make math simpler. He integrates empirically. Do not leave comments about sysadmin's mother in your home directory.
Any program contains at least one bug.
Never trust the user. Never trust a client or even a fellow server program. Never trust the system. Make sure your program does what you want it to. It has real and imaginary components.