Sperm donation?

Guy goes to the sperm bank and once there the nurse hands him some mens mags and a jar once shown into a cubicle she says i will be back shortly to see how you are doing then pulls the curtain.sometime later the nurse returns and the guy is lying on the floor shaking. shocked by this she asks are you ok? and he replies oh nurse its been a complete nightmare ive tried my right hand and ive tried my left hand but i still cant get the lid off this bloody jar!
Answer
That is soooooo old