A tree has limbs.
The horse knows when I'm grooming him.
A sperm as a 1 in a million chance of actually becoming a human being.
Because they're stuck up
Leaf me alone.
A lepercon. (In honor of Saint Patrick's day.)
One guy threw down his hand and another laughed his head off. This was my best friend's favorite joke when she was little apparently.
An amputater
I went out on a limb.