That almost sounds like "middle child syndrome"... you've got chi #1, who's already established and, I'm guessing isn't in the play pen when he is. Then there's him, stuck in there, watching everything going on and he wants to be part of the action. He may be bored in the playpen and would rather be with you or whoever's hanging out outside of his "prison cell" LOL
You may try giving him a kong to keep him busy and get his mind stimulated. Slap a little kibble and a treat in there... top it off with a smidge of peanut butter and you're good to go. I put green beans in Cooper's sometimes... he loves them and they're good for him. It's like giving a kid that loves puzzles a 10,000 piece puzzle to put together.
Other than that, maybe a new toy or something... when Cooper was little, I bought a bunch of cat toys at the pet store that were on sale .. cheapos that were easy to shred. I would give him two or three and keep the rest hidden then, a few days later, take the shredded ones and give him a new one. A little variety never hurt anyone!
Good luck!
You may try giving him a kong to keep him busy and get his mind stimulated. Slap a little kibble and a treat in there... top it off with a smidge of peanut butter and you're good to go. I put green beans in Cooper's sometimes... he loves them and they're good for him. It's like giving a kid that loves puzzles a 10,000 piece puzzle to put together.
Other than that, maybe a new toy or something... when Cooper was little, I bought a bunch of cat toys at the pet store that were on sale .. cheapos that were easy to shred. I would give him two or three and keep the rest hidden then, a few days later, take the shredded ones and give him a new one. A little variety never hurt anyone!
Good luck!