I remembered the movie scene but I had to look it up:
In the film (Star Trek VI: The Undiscovered Country (1991)) - While imprisoned, Captain Kirk fights an alien and hits them in the knees, knocking them out ... after the fight he is thankful that the brute had knees ... but is told that 'not all species have their genitals in the same place'
For alien anatomy ... it would be pretty weird to have your genitals on your knees ... you'd have to cover the entire planet in 'baby bumpers' and have a military industrial kneepad manufacturing complex
1992 Trek is best Trek. Fight me, just don't touch my knees.
Fuck face!
When you step on a Lego barefoot.
When your dry, warm wool socks contact something cold and wet.
"That was not his knee."