Our drummer did that recently. In order not to be hidden behind the singer he decided to set the kit up to one side. On a smallish stage.
Fair enough. .
But it was on my side, that had me, the bass cab, his monitor and the stage box with all the cables. On the other side.... Nothing, apart from a huge hole (as the guitarist used pedals/small amp). Looked completely lopsided.
Phew, glad to finally get that off my chest.