A Carleton University student witnessed a man wielding a knife steal a laptop Monday morning. The unattended laptop belonged to a friend of the student’s who happened across a man who was taking a look at the computer before pulling out a knife and stealing it. Police told the Ottawa Citizen that incidents like this are common early in the year, as incoming students are still adjusting to university life and may still be used to high school where they may be familiar with most students. “New students have got to be careful, always keep it under lock and key or under surveillance,” Staff Sgt. Denis Cleroux said.