Private Investigator jokes

When I hired a Asian detective to see if my wife was cheating on me, I got this letter:

Mr. Wong - I see he, so I climb up tree. He knock on door and she let him in. She talks to him, he talks to she. He undresses she, she undresses he. She plays with he, he plays with she. I play with me, I fall out tree, I no see... No fee.