MILWAUKEE - A prank turns to terror on Milwaukee's north side.
It happened when a 21-year-old man thought it would be funny to scare his mother when she got home from shopping Thursday night.
He put on a ski mask, confronted her behind their home and pretended to rob her.
That's when she pulled out a .357 revolver and fired several times.

Milwaukee Mother Shoots Son During Prank | Newsradio 620 - Milwaukee, Wisconsin News, Talk, Sports, Weather | Local Headlines

The article further states that 2 guns were located on the scene. I wonder how much of a prank this was going to be.