I love a good, ridiculous and nerdy debate about things that don't necessarily matter. For example, in German class, we were talking about animals and got onto the subject of snails (Schnecken). All of a sudden the class was thrown into a huge debate regarding whether they were animals or not.
Some classmates tried to "science" and talk about the classification of snails. It would work...if we were in a C2 German class. However, we're all barely intermediate level speakers (B1.1) and really, do we have such vocabulary? Our teacher settled it by saying that they aren't plants or minerals so for the purpose of our discussion, they are animals.