Nicole Brown Simpson's sister broke into tears on the witness stand Friday as she told how O.J. Simpson humiliated his wife in public and once hurled her against a wall and threw her out of the house.
Denise Brown, 37, detailed a series of incidents for the jury at his murder trial - including one in which he grabbed his wife's crotch at a crowded bar and declared, "This is mine."
As she told of another incident - the blowup at his mansion - she began to cry, and the prosecutor asked that court be adjourned 10 minutes early.
"It's just so hard," Brown said, sniffing and wiping her eyes with a tissue.
The trial was recessed until Monday. Simpson is …