Yeah, you should be paper inside. Wear a mask too, you only get one pair of lungs and fiberglass doesn't degrade and get swept out like some other junk you breathe in does.
Did you get the squirrel hole boarded up?
I'm pretty sure paper out is northern or mountainous climates. Paper to the wall is hotter climates.
Are you in the mountains?
You could spray-adhesive glue that stuff right back up there too and call it good. Might save a buck!
Someone's in the Christmas spirit.
I've had too many CCIs fail to cycle, fail to fire, etc. to ever trust them in my guns. The last thing I want when I'm shooting is a dead "thunk" when I'm expecting Bang.
Shooting them out of a cannon in bulk.
I've never had them block up. Been shooting Colibris in town out of a marlin 60 for about 5 years. I have had the occasional one of them fail to cycle but yank the slide and you're off again. Until you try them, don't go around calling BS.
Yes with colibris! One or two in the heart/lungs and he'll run a minute, but not too far.
Take a few out and put up a gel setup. Wrap it in deerskin. Watch it work.
Any concerns about noise or can he just shoot 22lrs out the back door? If he's in town there's another concern with the law, so again Colibri 22lr's are best for that. Very quiet.
You can shoot coyotes with 22s and bring them down. At 15-20 yards you should be able to headshot most of them with 22lr.
If you've got concerns with neighbors or sound, stick to the Colibris. They're quiet like a pellet gun, but I'd say you have to go for a lung shot in with them. Not sure how...
I'd have to agree with Biker13. Sell everything but your one or two favorite. You're going through a divorce. You're about to need cash and portability. Plus having so many in an apartment is extremely tempting to handymen and inspectors that may happen to come in while you're gone, marking you...
When in doubt, whip it out. Wait, that's advice for different circumstances.
Wait until you say you're depressed online and they come out of the woodwork offering YOU guns with the coolest add-ons. I'm tempted to get depressed and just keep the stuff.