Grandfather was in the garden with his young grandson when the lad pulled a worm from the ground.
"I will give you $50 if you can get that worm back in the hole" said Grandfather.
The little fellow ran off inside and came back with a can of firm hold hair spray. He sprayed the worm. waited a few seconds and pushed it back into its` hole.
Grandfather gave him the $50 and went in side.

Sometime later Grandfather came back an gave the boy a further $50. "You already gave me the money Grandad"

I know that $50 is from your GRANDMOTHER

 and better ??? the last lot of Viagra my Missus bought from the Health shop ?? IT WAS 90% FAT FREE ??