1.  If the individual were carrying concealed you wouldn't know so there would be nothing to worry about.
2.  Anyone adjudicated with a mental health problem is banned from obtaining a firearm
3.  There should be NO infringements on our constitutional rights.  You don't have to have your ignorance tested in order to write so why should you have to ask permission to obtain a firearm?  
4. There is no gun show loophole.  You buy a gun from a dealer you have to undergo a background check.  No exceptions.  Once again you are ignorant of the facts and the laws yet you can exercise your Constitutional right to blather on.
5. Individuals who have an unreasonable fear of an inanimate object should receive phychiatric help.  They should be adjudicated incapable of taking care of themselves or their loved ones.