I have recently taken over managing a team. Many of the team members have known each other since they were school leavers together 25 years ago and the nicknames from that time have stuck.
One man of slightly oriental appearance is known as Tenko (after TV series). He doesn't seem to mind but it makes me uncomfortable to have a member of my team referred to by a derogatory nn because of his racial makeup
There are so many "issues" with this team that I'm going to have to pick my battles. Would you make this one of them?