Caligula outraged senators when he insisted on having his horse elected consul - one of the highest political positions. It was not particularly safe to walk the streets at night for fear of being robbed. Wealthy Romans had bars on their windows, or guard dogs, to deter would-be burglars. Army discipline is very strict. Woe to you if you break the rules.
Deserters face the death penalty.
If a whole unit deserts its post, one in every ten soldiers is executed. This type of punishment is called decimation. For lesser crimes, you might be demoted or given extra, unpleasant duties such as cleaning the latrines. First American Edition 1995 by Franklin Watts, A Division of Grolier Publishing, Sherman Turnpike, Danbury, CT 06816, First Paperback Edition 1996. I recommend this book for anyone interested in Roman Culture.