wait wait waitDo not go down HR route just yet. Make sure you get a few things clear first:- Was what they are saying really that bad or are you one of those "over sensitive" types. Remember you are in an MC after all. Grow a thick skin asap. Moaning etc is part and parcel of a bunch of wannabe tough guys trying to obtain a small number of Senior Mangt positions- Dig deep in yourself, has anything they are saying got backing? Are you as lazy as they think? Does your work lack quality and are you the 9-5 type that leaves all the work to the rest of the team? Are you terrible at client comms etc?If however, you are a consistent high performer and what they are doing is back stabbing with no reasoning or proof whatsoever behind it, then you could:- Take them into a room and give them a good dressing down. Explain nicely but firmly that if you ever get a sniff of them doing it again, you will escalate. Backup with an email as a final warning - Explain to them that they should not mistake your good manners for weakness- If it was that bad, have a quiet word with a non related colleague who is known to be a good sounding board. What does he think? They can sometimes come up with solutions that you have not thought of- Careful not to sound like a spineless moaning MC, hence why I am hesitant of the "go to HR! See the Partner!". Worthwhile trying to sort it out yourself first, then if it continues or it is not resolved, you escalateFinally, don't take it to heart. You know deep down if what they are saying is true or not. You are working in an MC and I am yet to work and see MCs that do not bad mouth each other. It is a sad fact of MCs. Surround yourself with MC colleagues who are more like you and don't like that side of MCs. But yes, lets nip it in the bud to see if we can minimise the bad mouthing