Don't worry about people thinking you're a brown noser. |
On the reverse side, those persons choosing to waltz in the alleyway of neutrality are often given the names of Uncle Tom, brown noser, Oreo, whigger, acquessor or wannabe. |
Make sure that they actually are a brown noser and you're not just prejudiced against that person. |
Eventually, the sucking up will stop, because the brown noser will get so sick, they will stop it or confront you, at which point you should tell them to stop. |