Discouraging bad chewing

[BlueRiley]

I've tried clapping my hands & yelling or even putting him in a "time out" afterwards but it doesn't really change much. He's relatively good but if he's out long enough he'll eventually find something to chew that he's not supposed to.
Some of the ideas I've had are some of the dog training aids like citronella sprays or the ultrasonic bark deterrents. Does anyone know if either of these would work? Can rabbits here the pitch that the ultrasonic dog tools make?
I'm also open to other ideas, bitter sprays don't work, he mostly just thinks they're kinda tasty. Maybe cayenne?
Thanks guys!

 

[Nancy McClelland]

We block off everything, but, that's a pain where you sit. Heard that rubbing with soap helps.

 

[agnesthelion]

Yep, rubbing with white bar soap has worked amazing for me

 

[Imbrium]

I woke up today to Nala chewing the crap out of the coroplast in her cage... seems the Ivory soap (the best kind of bar soap to use as it's very pure/natural) had finally worn off after a couple weeks. I got up and reapplied it to the coroplast and she stopped chewing immediately.

 

[tamsin]

Give him something better to do and mix things up because when they get bored they find their own fun