TV's "Barnaby Jones" debuted this day in 1973 featuring Buddy Ebson solving tricky mysteries. In one episode two crooks were caught red-handed after cutting a hole in the ceiling of a bank and dropping in to steal the loot. But the problem was there was no dust on the bank floor or on the two robbers. If Barnaby couldn't figure out how they did it they were going to get off. Barnaby went to work recreating the crime and soon had the answer. The next day in court he nailed the two perps. How?d they do it? First they marked out the cut lines from below, then drilled up through the ceiling at various points. One person then sawed through the ceiling from above (following the drill-hole guides), while the other stood on a ladder below holding a large cardboard box against the ceiling to catch the dust as it fell. A clean getaway? Not today. It's another case solved (and an idea you can use, too). And that's the On The House tip for today.