Five water bottles on a car bonnet

This is a weird thing I observed on my post dinner walks in my locality, twice now. Five half litre bottles (like the Bisleri ones) which we get for 10rs. All are half filled with water, placed equidistantly on the bonnet of a car that’s parked outside the house. Like the bottles make a semicircle along the bonnet of the car. Is it some car thing? Or is it something more? I found it super weird. And I did see the car once without any bottles. Anybody knows anything about this weird shit? 🤨🧐 Edit: I’m not sure why mods ban this? People be posting anything here on the sub. Why the scrutiny on this one.