I wish that was the worst, but it's tame for this job.
I work in a library, which is basically home base of the creeps. I was just on break with a female coworker who is also in her 20s and we were talking about how bad it got over the summer. She had an old man (she estimated in his 80s) follow her around, pretend to go for a handshake and then kiss her hand (I've gotten this too), tell her she reminded him of the girlfriend he had in his 20s who died of breast cancer, tell her he loved her, ask what she thought people would think if they saw them together (she told him they'd probably think she was with her grandpa), and asked her out. She also felt cornered once while she was shelving and gave "help me" eyes to our male assistant manager who then came over and saved her. Later, this old creep went up and told the assistant manager he hoped my coworker wasn't in trouble for talking to him. She said she was nice to him because she kept thinking "this guy is gonna kill me" (she laughed while telling me this, but I think a lot of us in this thread have had this worry before) and eventually got him to leave her alone by saying she had a boyfriend. Remember, he is OLD.
We have another old guy who comes in and constantly hits on every single woman who works here. He's old enough that when he's bothering me, I can walk away at a normal speed and he isn't able to keep up.
We talked about how we do a quick sweep of one of the isolated sections in the back of the library to see if any guys who've harassed us are back there, because they can corner us easily while we're shelving there. It happened to me a lot when I started working here. One man who'd spoken to me a few times (complimenting my wardrobe, giving me a weird love note thing) once came up to me back there and lifted his whole shirt up to expose his stomach. I was in shock and didn't react and I still don't fully understand what that one was about. I used to get a serious shot of adrenaline and fear when he walked in and spend my whole shift trying to avoid him. I was so happy when he stopped showing up.
It really struck me while we were talking about this that we'd both suffered in silence about it. So we decided we'd tell each other about anyone harassing each other in the future so we can help each other out. We shouldn't have to worry about it, though. All of the women here make sure we leave together at night and see each other back to our cars.
Also, don't harass women while they're working.