User talk:Aernst20

May 2014
Hello, I'm Petrb. I wanted to let you know that I undid one of your recent contributions, such as the one you made with this edit to System, because it didn’t appear constructive to me. If you think I made a mistake, or if you have any questions, you can leave me a message on my talk page. Thanks. Petrb (talk) 16:41, 1 May 2014 (UTC)