Brussels doesn't like people messing with their statue. The quote from the artist who place his own statue before the original peeing boy:

Let's face it. Belgium is a boring little country. And Brussels is a boring city. Filled with boring tourists. 

In the center of Brussels there is a horrible little statue. A small pissing boy. Where the tourists gather. 

What would happen if we changed the horrible little statue for something beautiful? 

Like a statue of Petro. Would the tourists even notice?