I'm a Bathologist

One night Noah put on his swimsuit, swim shirt, and goggles and declared himself a "bathologist."  He put up a "Stay Out" sign on the bathroom door and commenced studies.  A little while later, he came out and requested water animals because he was now a marine biologist.  He is so funny!  And always involved in some imaginary world.  He has since been a "bathologist" a few times.