I have had a similar problem, not with skwe-rells, but with racoons. They would dig my sarrs up, shred em' up, take the bugs, dig up everything else. I was SO p1ssed off!
i tried everything from the 'coon deterrent stuff, to even placing my entire cacti collection around my sarracenia collection. but it was still a no go!
I just moved everything into a 6 x 6 x 8 greenhouse/shed type structure for now and surrounded the whole thing with glass and chickenwire. That seems to do the trick to keep the coons out - they haven't figured a way in -- just yet.
I will be working on crossing one of my Gunnera manicata's (HUGE LEAVES!) with a Venus fly trap. this will solve the problem once and for all and RID the world from these dreaded pests. If I ever am successful, I will share my creation with the rest of the world to solve their CP rodent problems.
(...and boss problems, in-law problems, out-law problems.... so on... )