Hello, all.

One of my new coworkers is triggering my PTSD and flashbacks. He's going overboard with flirting and trying to "woo" me, giving me a lot of presents and coming over to where my register (I'm a cashier) is, no matter how far from his area is that shift. I try to be polite and neutral but he seems to take everything I say and do as flirting with him, even though I'm not.

How do I go about rejecting his attentions without him getting upset or mad at me? I'm really scared of angering men, and just the idea of telling him nicely to back off terrifies me.

SO:

1. How do I go about rejecting him?
2. Should I tell my boss?
3. What should I do if he doesn't get the message??