Repelling flies with water and pennies: Does the trick work?

Does Water in a Bag Really Work To Repel Flies? We Say Yes

Why does a penny in a bag of water deter flies? I did it and the flies left. - Quora

How to Keep Pesky Flies Away From Your BBQ : 6 Steps - Instructables

Coins left on gravestones: What does it mean and why do people do it?

Mums are hanging bags of water and coins on their windows to ward off flies & swear they haven't had a single one since – The Sun

Ever Seen Bags of Water Hang From a Porch? Here's What That Means

Florida man Paul Broadhurst punches bobcat to save dog

Terrifier Man Of The Hour T-Shirts, hoodie, sweater, long sleeve and tank top

Does a bag of water help keep flies out?