Bye bye dress

Using a slightly less subtle example of your powers you alter the molecular composition of Miss Hannigan's dress, so that it begins to dissolve in the water.

Mr Davis freezes for a moment, watching as the dress melts away from her skin, suddenly revealing her plain white bra and panties.

Miss Hannigan begins to panic, trying to brush the water from her dress, but just spreading it further and speeding up the decay of her dress until it lays in strips on the floor. "What the heck was in that water?" Miss Hannigan gasps, trying to cover herself with her hands.