Lise wrote:
I just know that if I go up to my supervisor about this, I'm likely to make enemies as Mr. Smith have been here longer than me.
That doesn't matter. If he is making inappropriate comments, which could be considered 'sexual', in a workplace, you could seriously screw him over pretty quick, end his career pretty fast. Don't live in fear of your company, they will cater to you, not him, and if they don't, you can make them pretty easily.
Don't have that fear over the sh*thead, make him fear you.
If you or your co-workers just sit back, try to ignore it, or giggle, then it will get worse before it gets better.