Twitter can be a dangerous thing. Tori Spelling's husband Dean McDermott learned this the hard way. Dean posted a picture of thier son on his twitter account yesterday, but failed to notice that his wife was topless in the background of the picture. He was totally unaware of the boo boo until some of his twitter followers pointed out the over exposed chest of his wife. Have you ever taken a picture only to find a photo bomb in the back ground?