When you are with someone and they start talking bullshit, and it is trivial, no-one-really-cares-bullshit, do you bother to correct them or point out to the rest of their audience that they are misguided or lying?

Even if it's a relative?

Even if they're older than you?

Even if the speaker has a known propensity for spewing inaccuracies?

I want to get better at calling people when they're spewing falsehoods - I know it could serve me well in personal and business life. I'm getting older and braver, but still I have problems with this person. They were either deluded or lying about the severity of a past illness and I didn't bother to jump into their story and correct them. I was concerned that my kids would see me passively letting anaccuracies slip, but I am sure that they were paying attention. I avoided a scene (I think) by not correcting this person. I just don't know if it would do any good with this particular individual. It's sad that I don't think they're worth the effort.