The yukakiboo – hot water stirring stick commonly found in Japanese domestic bathrooms.

In a culture where you scrub down before climbing in the bath and one tub of bathwater is good for a whole familiy’s worth of sequential bathing, the water re-heating process can result in an uneven temperature – hence the need to stir. Whether you live in a culture with wet rooms – where the whole bathroom is designed to cope with being splashed, dry rooms or indeed you have no-room or water to splash around in.

The psychology of stepping into a bath and feeling the water overflow versus cultures where the aim is to keep the water in the bath. Same question for kids other age groups. And given the intensity and ritualistic nature of the bathing experience on the senses whether and how this affects how we perceive the world?