Deborah Reid, 42, pleaded guilty Tuesday to culpably and recklessly brandishing a knife after she stabbed her husband, Thomas Reid, in the right shoulder with a kitchen knife in July while he was attempting to calm a heated argument between his wife and 18-year-old stepdaughter over what they should watch on TV, the Edinburgh Evening News reported Tuesday.

Prosecutor Siobhan Monks said Reid dropped the knife after the stabbing and fled from the house while her family locked the door behind her and phoned authorities.

Sheriff Nigel Morrison postponed sentencing in the case until background reports on the defendant can be obtained.