http://hbar.physik.uni-oldenburg.de/.../msg00060.html
Code:
#!/bin/sh
                        # Honour virus
                        # 
                        # Dear Linux/*BSD user,
                        # As you have avoided the various 
                        # virii inflicted upon your poor 
                        # Windows-using cousins, please take 
                        # a moment to read this letter and 
                        # then follow the instructions below. 
                        # 
                        # In the spirit of cooperation of 
                        # the free software community, this 
                        # virus was written to depend on your 
                        # cooperation and good will - hence 
                        # the name "honour" virus. With your 
                        # cooperation, this virus can spread 
                        # as rapidly as the lovebug virus, 
                        # once again showing how the free 
                        # software community can respond to 
                        # issues quicker than the largest 
                        # propriatary software maker.
                        # 
                        # The virus starts here:

                        # 1. Please delete, at random, 10 (ten)
                        # .jpg, .mpg, .mp3, or .mov files from 
                        # your hard drive. Please do not choose 
                        # files for which you have a 
                        # backup, as that would be unfair to all 
                        # the Windows users who *never* 
                        # backup their data.

                        # 2. Please send this email to everybody 
                        # you have ever received an email 
                        # from. We realise that you might have 
                        # to write a short shell script to 
                        # do this easily, but we feel that, 
                        # as a Linux or *BSD user, you are 
                        # most likely to be able to do this 
                        # without relying on built-in insecure 
                        # scripting mechanisms.

                        # 3. If you are reading this in 
                        # your workplace, please shut down your 
                        # workplace's email system and internet 
                        # access for 3 working days - 
                        # again this is just so we can empathise 
                        # fully with Windows-using companies.

                        # 4. When asked if the writers of 
                        # Linux or *BSD are to blame, claim that 
                        # the virus only spread because of 
                        # intervention by the user's brain and 
                        # that the tight integration between 
                        # your wetware and the OS is a good 
                        # thing that is misused by malicious 
                        # virus writers.

                        # 5. If you are Linux Torvalds, Alan Cox, 
                        # or you have ever written any 
                        # free software, write an essay for 
                        # Time magazine complaining that it 
                        # will be much harder to protect Linux 
                        # users from virii such as this 
                        # unless Linux is sold to company asnd 
                        # development continues only in a 
                        # closed-source environment. In particular, 
                        # all user knowledge of the OS 
                        # must be erased if such virii are 
                        # to be prevented in the future. 
                        
                        # 6. As this virus is copylefted under 
                        # the GPL, feel free to modify, 
                        # err, mutate, and distribute widely.
                        # 
                        # Thank you. And remember, open source 
                        # virii are far superior to proprietary virii!
                        # 
                        # Tuxunamis Infectious
i've seen stuff like this before (ie- the ommish virii) but it's still a decent chuckle