guys will try to impress you by telling you they know everything about dragon mythology and folklore and then not even be able to tell you the difference between a wyrm and a wyvern
guys will tell you they know what a drake is and then describe an amphithere
guys will mix up wyrms and lindwurms and say "well they're all dragons aren't they"
i know someone who got a lindwurm and a tatzlewurm mixed up