East German Stasi Joke

Honecker opens his curtains in the morning and sees the Sun.
" Good Morning Mr.Sun," says Erich
" Good Morning ,dear Erich, dear Leader," says the Sun.
At lunchtime, Honecker looks out of his office window and says " Good Day Mr.Sun"
"Good Day, Great Leader" says the Sun.
So when he goes to bed, Honecker opens the curtains to darkness and says " Good Night Mr.Sun".
No Reply. So Honecker says it louder " GOOD NIGHT MR.SUN!"
" Sod off," says the Sun, " I'm in the West now"
It earned the teller the Stasi equivalent of Siberia.