Yea strange topic but bear with me.
I was browsing some stuff re CW aka Morse Code. I ran into these two army training flicks.
The first dealt with sending CW and rythim and basic dit dah pretty mundaine stuff.
The second (link below) starts out more or less the same but is a discussion on the adjustment of a 'straight key' (I guess I use a gay key but thats another joke). You can fast foward through that but dont go too much further... wait for it !
(About 4:10 in)