Biggest red flag jobs?

What are the jobs that give you the biggest red flags when dating?

I always assumed someone's job wouldn't matter to me as long as they were ambitious and motivated in their role whatever it was. But I've started dating a policeman and some people have been giving me funny looks about it so maybe it's a thing I've not considered

EDIT: Selfishly I love my job hasn't come up as a red flag 🤣🤣