A Rebbe of mine related that a man once came to look at a certain Bachur being Redt for his daughter. The Bachurim were lining up for lunch. The moment the Mashgiach pointed out the usually refined young man, the Bachur grabbed the hat off the guy in front of him and frisbeed it across the room.
The Mashgiach tried explaining to the father that this Bachur never behaves like this. The man said, ‘Perhaps, but I guess it’s not Bashert.’