Non believers in automated testing that is !
Now that Agile is more accepted in the main stream, opposition to it has taken a different flavor. Developers never say no to writing tests but some don’t really believe that it works. Others are just lazy and undisciplined.
On teams where this is a majority opinion, failing tests are norm. They are usually ignored and code coverage is generally dismal. Now for the funny part ..
Every now and then a non-believer runs into a situation where sensitive code needs modifications. They usually change and commit without due diligence and the answer to “will this break something” is “We Have Tests” !!