Why the number of times that I break the build should matter in any case? I think that I break the build several times per week because when I test the applicat

Why the number of times that I break the build should matter in any case? I think that I break the build several times per week because when I test the application using F5 in visual studio it doesn't do a full build and so the tests may not compile. Furthermore, even if they compile they may be broken. This is the primary purpose of the build system, to run the tests and to fail when something is wrong so I don't have to spend time running tests on my machine. Once they fail on teamcity I fix them. And I will be very surprised if anyone of my colleagues complains about it given that only I use my feature branch.