What about Fear of water? Phobias: xenophobia definition is a bit simplistic; yes 'strangers' but also more towards the fear of foreigners. Usually, used socially and culturally than just 'strangers' but I digress.
How to make a modern hypertufa planter to use outdoors in the garden - perfect for succulents! Use concrete ready mix. plus organic matter (for hypertufa):such as peat moss, cocoa husks, wood chips or sawdust