Long hours on the computer at home are a signal that something is wrong.

在家里，长时间坐在电脑前就预示着某些事情开始不对劲了。

youdao

There must be something wrong with my electricity meter because last month I wasn't home at all and still got a bill for $230.

我的电表肯定是出了问题，上个月我根本不在家却收到了230美金的帐单。

youdao

Be aware of your surroundings both at home and at work, so you know if something is wrong or out of place.

BBC: The threat