Things I hate hearing from millennials: God I feel so old. You're such a youngin. Back in my day, etc.

Yes, quite often I am younger than people I work with, but many of them aren't that much older than me. It's weird hearing a 30 year old tell me they feel hella old and out of touch. That's going to be in less than 5 years if I don't continue taking in meaningless information.