This is what I have done in the past. These are virtually harmless. I get a glass and fill it up with water and stick the vics toothbrush in it..set in freezer. Using a black pony tail band wrap it around the spray nozzle and aim it to where the vic is going to be standing when using the sink, same applies to the shower but if you have a pull up knob, wrap a black band around it and point it to the vic where he could be at while he turns the water on. For the geekiness. here is what you do. get a sticky note and write "April Fools" on it and tape it to the underside of a mouse.