So you want to rob a bank; not saying you should, but... the “best” day is Friday, and the best time is between 9 and 11 a.m. So set your cellphone to an early wake-up call. Concentrate on a branch in a commercial section of the city. Go up to the teller counter and say your threat or hand over a note. Avoid an act of violence; only three percent of incidents of robbery, burglaries and larcenies resulted in violence in 2014. By the way, vastly more perpetrators are killed in a bank robbery compared to customers or employees.