People that don't think I will ever need a semi-auto rifle with a 30-round mag for self-defense.
People that are stunned when they see a .223, .308 and 30-06 side by side and told they are wrong when they pick the 30-06 as being the devastating Assault Rifle AR-15 round.
Gun owners that claim to have been around guns all their lives, but don't think a gun can have an accidental discharge because that's what they were told on their local forum.
9mm shooters that I have to stay away from when discussing calibers because they are as clueless as Joe Biden.
People who don't have the shooting skills to hit the inside of a barn if they were standing in it but want to compare the accuracy of rifles they are shooting.
Young people that claim Hydra-Shok's are old technology and there are much better choices today.
People that don't know anything about metallurgy, mechanical engineering, and slept through physics class, but are sure dry firing is okay because their gun hasn't broken.
That's just off the top of my head.