Linux: Because rebooting is only for installing... Pinback Button
As Linux/UNIX users, we do tend to be a little smug when we hear windoze users complaining about their constant reboots. Whether they're installing software, recovering from another lockup, etc., they're constantly rebooting. In the UNIX/Linux world we generally don't reboot except when we're installing hardware (and don't feel like getting electrocuted!). This pro-Linux/anti-windows merchandise says: "Linux: Because rebooting is only for installing hardware"