Halocho #804 - Mind your own business

One should not stare at a field that is ripe and ready to be harvested, so as not to cause damage by Ayin Hora.

(Ayin Hora: Being somewhat envious of other's success, triggering a heavenly judgement which causes that success to become a failure.)

Obviously one may not stare at other people with the intent of causing them an Ayin Hora.

Similarly one should not watch other people at work if they do not want to be watched.

The correct behavior when seeing busy people is to wish them success and bless them with prosperity.

Source: Kitzur Shulchan Aruch 183:6

- Danny
Monday, 12 Iyar 5771 - 27th day of the Omer