It seems that many of the recent lists on Listverse have been quite serious – which is not a bad thing, but sometimes we all need to take a break and look at something fun. So, I have scoured the Internet and put together a list of 15 very funny examples of graffiti that is either aimed at geeks, or by geeks. This is definitely not your typical graffiti. Enjoy – oh, and be sure to point us to other similar examples in the comments. Click the images for a larger view.