Granddad goes into betting shop with grandson. Grandson asks if he can put a bet on. Grandad says " can u touch your ass with ur d*ck"?. No says grandson. "Your not a grown man then so no bet" says grandad.
So the grandson goes to newsagent next door, buys a scratch card and wins $50,000.
Grandad says "we will split it 50/50"
Grandson says "can u touch ur ass with your d*ck"?
Of course says grandad, I am a fully grown man!
Well go f**k yourself says grandson