One of my cats (don't know which one) has continually peed on the dog beds, too. I now use an old pillow wrapped in hospital pads that won't let the liquid through. I can wash any part when necessary. Whoever it is has gradually lessened this--I have no idea why they started or stopped!

My cats usually respond to a loud clap rather than the water bottle. I'm usually not close enough for the spray to reach. Since he's still young, maybe you could scruff him when he's doing something wrong and tell him "No!", then put him down and walk away. (Lift him up so he's not touching the floor but don't shake him). Be consistent.

It sounds like Emmit has ADHD