Working in customer service can be tricky, especially when you deal with overzealous and emotional patrons.
You have to balance a fine line between being courteous and kind while also being professional. And you could do a damn good job of this, but some people inevitably mistake your professional kindness for a personal one.
And then they start getting certain ideas, especially when it comes to female workers. I can't count the number of times I had to roll my eyes when working as a waiter when I'd hear guys whisper amongst themselves, "dude, she's totally into me."