it's someone's funeral

Phrase

informal

(informal) One's decisions or actions will bring undesirable consequences only on oneself.

Japanese Meaning

自業自得。自分の判断や行動が、最終的には自分自身にだけ悪い結果をもたらすという意味。

You can keep spending money on dubious schemes all you like, but if it collapses, it's someone's funeral.

怪しい投資にいくらでもお金を使っても構いませんが、もし破綻したら責められるのは自分だけです。

Sense（1）

(informal) One's decisions or actions will bring undesirable consequences only on oneself.