Every once in a while we add humorous content. Some are just silly and some can really help us learn and retain what we learn. So, don't be surprised if you see others. There are whole sites on youtube, twitter, etc with: "S...t Duo says." Everything is easier with a smile.
Welcome to the course and if you ever need any help just let us know. Have you seen the Discussion Forum...https://www.duolingo.com/topic/936