You know you're insane when

You’re sat there wondering whether a supraesophageal ganglion is similar to human nerve cells - actually, if we have them at all and you just weren’t aware of it. And who discovered that flies have three ganglia which fuse together to form something like a brain - Why? And what that means for life. Then, obliterating what little sanity was left, why mosquitos have 7 abdominal segments, rather than an even 6 or 8 - which leaves all kinds of questions about everthing.