Originally Posted by
petaluma1
How are you going to prove that someone is sane? Sober, yes, but sane - very difficult for even a professional to do. Certainly no one from TSA has the capability - unless, of course, they are a mind-reading BDO.
Obviously you cannot prove it. However, it is relatively easy to ascertain the reverse. As you have indicated, sobriety is easy. I'm not asking for perfection. However, I am sure that you have encountered people who you are able to ascertain are not of sound mind in 15-30 seconds. Don't let the perfect be the enemy of the good.