Why do flies orbit you and then disappear?

Their eyes have almost 360 degree vision, they see you get the fly swatter so they fly away and wait, when they see you put it down, they come back. They are phkin with you for fun.

because they’re fanatics of the Solar System(like some Star Trek fans)and they want to act as much as possible like some parts of the solar system

Flight Performance and Visual Control of the Free-Flying Housefly- Pursuit of Targets

Perhaps this will help? (Plus, it’s an excellent dorky read!)

Because the little bastards are smarter than we think. And rest assured the ones you do manage to swat have just taken a sip of your beer/booze and are a tad bit disoriented.

@Christian95 I resemble that remark.

…and why do they fly underneath lights… I think I’ve asked that question on here before though…