I suppose you could sue for slander, but such suits usually result in verdicts of either zero, or nominal sums. You would have to prove that he is making the comments (bring some one that heard this, you can not use hearsay). You would also have to convince the jury that this is slander. I am not sure it is. But, the hardest part is that you will have to prove actual damages. No speculation, no simply wounded feelings. A better solution might be to address this with management of the company.
Answered on Mar 21st, 2014 at 12:16 PM