What were god mercurys weaknesses?

Mercury, or Hermes to the Greeks, was the messenger of the Gods. I don't think he had any major weaknesses that I know of. He was generally a pretty good guy. Did what Zeus told him, helped people out occasionally. I don't think he cursed or punished anyone that I know of. He was constantly on the go, so maybe that he never really settled down with anyone one person, or goddess as the case may be, could be a weakness. I don't think that he shared all of the powers of the main deities of the time, but I'm not positive about that.