Article continues below advertisementLionel Richie is not giving disrespectful celebrities the benefit of the doubt.Just one week after an incident took place between Chappell Roan's security guard and a fan, the 76-year-old gave advice to fellow stars who do not treat people around them with kindness.Article continues below advertisementTap Here To Add Ok Magazine as A Trusted SourceSource: Artist Friendly w/ Joel Madden/YouTubeLionel Richie guest-starred on the 'VEEPS Artist Friendly' podcast."There's one thing you didn't calculate.