A childhood belief about bathrooms

i used to think that when i was in the bath if i made too much noise a shark would eat me and and once i heard a bang underneath the bathtub and i jumped out completly naked and ran into the street thinking the shark was trying to get through (i was 4 and i never told my mum until that incident) and my mother father and sister almost peed themselves laughing at me standing in the front garden soaking wet and covered in shampoo i wasn't finding it funny telling them to hurry up before the shark ate them ... they just laughed harder i now see the funny side lol i was a strange child