I'm really quite a mad man 
I'm so impetuous 
I wear conflicting colours 
And like singing on the bus. 
 
I really am a rebel 
I never do things right 
I talk too much at parties 
And play music loud at night. 
 
I really am outrageous 
There's no limit to my fun 
I even finish crosswords 
Before others have begun. 
 
For i work with computers 
The future i have heard 
I really am quite tasteless 
In fact i am a nerd.
David Keig
http://www.poemhunter.com/poem/the-nerd/