Subjected to boredom, brains tend to generate random thoughts. Here's one from me and one from my better half (you can try to guess which is which).
1) In most languages you say "Get well soon", but in German you say "Gute Besserung", to wish that Besserung (the process of getting well) is not quick but... good. So literally this means "Get well well". Why would the Germans say that? How can the Besserung not be gut?
2) If Big Bang Theory had a porn parody (link NSFW obviously), what would it be called? It cannot be called Big Bang Theory because the original series is already called that. Big BANG Theory?