can't kill rspec, capybara, poltergeist with ctrl+c

gistfile1.txt

1.9.3-p327 → rspec spec/requests/
WARNING: Nokogiri was built against LibXML version 2.8.0, but has dynamically loaded 2.7.8
Rack::File headers parameter replaces cache_control after Rack 1.5.
...^CF^C
An error occurred in an after hook
  Errno::EPIPE: Broken pipe
  occurred at /Users/cjolly/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/poltergeist-1.0.2/lib/capybara/poltergeist/web_socket_server.rb:144:in `write'

F
An error occurred in an after hook
  Errno::EPIPE: Broken pipe
  occurred at /Users/cjolly/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/poltergeist-1.0.2/lib/capybara/poltergeist/web_socket_server.rb:144:in `write'

<snip>

  3) Job form and process server company interactions new job allows creation of a new company with a contact
     Failure/Error: visit new_job_path
     Errno::EPIPE:
       Broken pipe
     # ./spec/requests/jobs/process_server_company_jobs_form_request_spec.rb:25:in `block (3 levels) in <top (required)>'

• OS X 10.8.2
• rbenv 0.4.0
• ruby 1.9.3-p327
• rspec 2.12.2
• capybara 1.1.4
• poltergeist 1.0.2
• phantomjs 1.7.0

also - coworker can kill proc fine on this project, noticeable differences in his env - uses rvm, OS X 10.6.8