Is there a way to easily blunt a corner vertex into three vertices? I want to take the pointedness out my corners by blunting them.  i want turn the corner vertices into 3.  Imagine my drawing to be a corner of a cube... 





I tried to bevel using CTRL-SHIFT-B but it changes so much of the surrounding geometry.. too many side effects for what I want. 

Thanks for any insight.
ctrlshiftb works fine. But you need to make sure, your surrounding geometry has good topology. If you bevel the vertex of a non-planar face for example, the silhouette of your object may chance dramatically.



First two bevels on planar faces, the third one is non-planar.