The phrase is usually an individual activity done in private homes.

Often Personal

Bathing practices can differ globally, but 'take a bath' often implies submerging in a tub.

Cultural Variance

The phrase can suggest a leisurely or pampering activity, not just cleanliness.

This idiom is often used in business or investment contexts to talk about losses.

Here, 'take a bath' does not involve water. It's metaphorical for losing assets.

Using 'take a bath' in finance usually indicates an unexpected and negative event.