Some Sneaky Sim

Some Sneaky Sim is the only burglar that robs unlucky Sims' houses in The Sims and all of its expansion packs. He will only try to steal the expensive items that are in the household. A Sim can call the police once he arrives on a lot, though they will probably not arrive in time to arrest him. If he comes within range of a burglar alarm, it will automatically summon the police. Unlike The Sims 2 and The Sims 3, he will surrender and go peacefully when the police arrive.

Most of the times, the burglar will arrive late at night. But at some point, he may rob you when the Sims are awake. If one comes in the lot, Build and Buy mode are disabled, until the burglar is finished stealing your stuff. If your Sims have a baby, there is a chance that he may take the baby with him. The burglar will spend his time stealing as many items as he can and escaping before the cops arrive. If the police come after the burglar had robbed you, they can't do anything about it. If they do, however, catch the burglar, you will receive 1000 Simidollars, plus some extra money if he took some items. (The police don't return them to you, as it is used for evidence.) Burglars are attracted to families that do not have dirty houses, and have wealthy items, such as a computer, or a television, but we can't actually predict when the burglar will come, nonetheless.