Originally posted by davey23uk
its the oracle executable which runs everything, you will notice it has the setuid permission set so that everytime you want to run something, it gets run as the oracle user. Play with it at your peril

It is a documented feature that if you run it you get a ORA-600
it's also alot of fun in an outsourced data center environemnt where the dba's must report all alert log errors within a specified time frame to meet sla's. In the past in moments or boredom I'd type oracle, oracle, oracle at the command line to light up the alert log and see how long it would take the dba to respond ;-)