|"Would you like to buy a leather mug?"|
Yup, another plot that pales in comparison to later reinventions, done better. Notably, John de Lancie's Q, in The Next Generation, (similar to William Campbell, name a show, de Lancie's probably guest-starred).
Trelane and his family were retconned into Q's at some point, everyone is Q!
And since we're talking about Next Generation, seems like TOS' female guest stars were all bombshells (this week it's Venita Wolf), while TNG's all sort of looked like Moms. Changing social mores? Casting? Brutal ugliness of TNG's costuming? Discuss.
Also, it's parentheses day (apparently)!