Y no debería ponerlo, pero es que me he reído, siento:
A chicken and an egg are lying in bed.
The chicken is leaning against the headboard smoking a cigarette with a satisfied smile on its face.
The egg, looking a bit pissed off, grabs the sheet, rolls over and says «Well, I guess we finally answered THAT question now, didn’t we.»
(vía Secular Blasphemy)