In addition to watching the way your date treats service help, watch the way he treats his parents. I once almost was arrested for getting physical with a 16 year old boy who was so horribly disrespectful to his parents during a Passover Seder. It was the most out of character thing I've ever ever done. The little S**T insulted his Father in such a crass and vicious way in front of a table of strangers and family (His Father's little old parents too). When nobody did or said anything, I took things into my own hands...literally...Long story short, I got the kid into a room on the next level of the house, pushed him on a chair and read him the riot act. the kid threatened to call the police (I dared him to)..then I went back to the table and told his girlfriend, who was sitting at the table...you can tell the way a man will treat you by the way he treats his parents and if I were her, I'd run like the wind.
I then made him apologize to his Father, in front of everyone by telling him that I'd leave if he were to do so. He did, but then the parents told me they didn't want me to leave. The kid stormed to his room. The parents called me the next day and thanked me (can you imagine). But I was never invited to their home again! LOL!
The parents called you and thanked you? They thanked you fo doing their job!WOW! That kid hasn't got a chance with parents like that.