Clear Shampoo, Irresistible Hair

A man sits happily chatting at a restaurant table with a woman. He appears to have his arm around her, but as the camera pans his arm is actually reaching over into the next booth and is stroking the hair of a man. The fellow, sitting alone, looks very unnerved by the unexpected attention and doesn't realize who it is.

The ad is funny and doesn't use homophobia for its humor, since the man sitting alone has no idea who is flirting with him.