No Rails command will exit on the first CTRL-C. So rails s or rails c require me to hit control CTRL-C a second time and commands that previously wouldn't have required a CTRL-C at all such as rake routes / db:migrate now require me to press it.

The issue is not happening for any of my teammates. I'm on OSX using iTerm2. There are no instances of 'rescue Exception' in the app. 

I've just reinstalled mysql using brew and the issue is still present. Rails version 4.0.5 and sql server version 5.6.27. Any idea where the issue might be?

```
[2016-01-13 16:18:33] INFO  WEBrick 1.3.1
[2016-01-13 16:18:33] INFO  ruby 2.1.2 (2014-05-08) [x86_64-darwin13.0]
[2016-01-13 16:18:33] INFO  WEBrick::HTTPServer#start: pid=2329 port=3000
^C[2016-01-13 16:18:54] INFO  going to shutdown ...
[2016-01-13 16:18:54] INFO  WEBrick::HTTPServer#start done.
Exiting
^C

```