Assue that, If you would like to remove or install a specific package from the system shows the following error
"error: Failed dependencies".

# rpm -e lame-3.99.5-1.el6.rf.x86_64

error: Failed dependencies:
    libmp3lame.so.0()(64bit) is needed by (installed) lame-devel-3.99.5-1.el6.rf.x86_64
    libmp3lame.so.0()(64bit) is needed by (installed) ffmpeg-0.6.5-1.el6.rf.x86_64
    lame = 3.99.5-1.el6.rf is needed by (installed) lame-devel-3.99.5-1.el6.rf.x86_64


 We need to disable  dependencies while removing or installing the packages in it.
 
The rpm provide the option --nodeps.
--nodeps :    Don't do a dependency check before installing or upgrading a package. 

 
# rpm -e lame-3.99.5-1.el6.rf.x86_64 --nodeps