i saw him today at work, for some reason he likes to come in when he's not working...kind of awkward he just patted my shoulder idk just awkward.
email him with a friendly request that he stop doing things like this because they make you feel uncomfortable. relate it to your reaction to the hug and kiss, and be sure to be professional in your writing. DO NOT give them any ammunition against you, like calling him any names or swearing or anything inappropriate. the purpose of the email is that it is on record that you have denied him your permission to approach you in this manner. if he has any brains he should immediately back off.
with it on record like this, no one can write off the complaint pleading to his ignorance.