In The World of Star Trek, William Shatner
relates that he endured an excruciating make-up session for this episode - all for nothing, because the shooting day was just about to end. The producers caught his exasperation in an infamous blooper, wherein he declares, "Robert H. Justman
, I'm going home now, after spending three hours putting this [expletive deleted] make-up back on - and it's your fault!" See more
Oh, you're perfectly healthy.
I must differ with you, Doctor. I'm having difficulty concentrating, which is most disturbing, my eye sight appears to be failing, and the normal temperature of the ship seems to me to be increasingly colder.
I did not say you weren't affected, Mr. Spock. You are perfectly healthy. That is, for any normal Vulcan on the high side of 100.