What do you do if a college tries to use you to get back at a supervisor he does not like and you are new in the company?

First I will explain to college that it will be good for all of us, If we don't talk any thing bad about any one, as it will effect the work environment and effect the work quality in any project. and if he/she is still doing the same then I will try to bring the issue to superior for right solution.

1. Approach the colleague with an open mind

2. Consider what might be the reason before jumping to a conclusion

3. Speak to the HR department

4. Ask them not to involve me whatever the situation is between them and the supervisor

I will excuse myself and tell the colleague politely that I need time to understand the policies and atmosphere at my workplace. Only then I will be able to communicate with the supervisor. 

haha

it depends on his interests/priorities

either he just needs money or teaching/learning are too as well, as being supervision also he could get money. but may be he could less money than job's or/and more...

Thank you

Well, as I am new to the company I play more safer than usual. Whenever such situations arise, I will first find out the intentions of the employee, and will not support him/her if she/he wants to use me for a personal issue she/he has with the supervisor. I suggest her/him to have a one-o-one discussion and resolve the differences. I will also explain her/him that such an act to keep differences and try to show up that is not professional, and will not help the team or company.. If the issue is very critical, then I will escalate this to my supervisor..

First of All, will explain for the colleague's that , we are here in a work environment and all personal feelings should be kept beside or behind in your house. secondly I just start the work and didn't have the full picture to have my opinion and even though, I will certainly try to act in a professional way without any prejudice selfishness

I can exploit this situation to make a good communication and relationship with him.

do your job and never look to what others trying to do behind you and let your boss they what you are doing and what they are doing to you

This is useful for the benefit of the positive work environment

Agreed with colleagues answers