"A Zookeeper was walking.." joke

A Zookeeper was walking through the zoo one day, checking on all the animals.
When he passed near the Giraffe pen, he noticed a woman standing near the fence
that contained the giraffes.

One of the largest giraffes had walked up to the woman and stood in front of her on
the other side of the fence.

Suddenly, the giraffe reared up and jumped over the fence and raced away through the zoo.

The Zookeeper ran over to the woman. "My God Lady, what happened to the giraffe?"

The woman turned to the Zookeeper and said, "All I did was reach through the bars and tickle his balls."

With that the Zookeeper dropped his own pants around his ankles and said, "Tickle mine, I gotta catch him."