Different views when working

Help guys...How do you deal when you work with other nurses who you can't agree on anything? I feel annoyed that my mind space has been taken up by a colleague who believes death penalty deters violence and that your clients should always be on their 'best' behavior or they should be kicked of program (it's a public hospital methadone clinic!) I would certainly feel less irritated if she was a super dynamic proactive nurse ( she's not). Sorry about the vent...just wondered what others do to manage their minds space and not take this crap home. Bless you all!