Fear of Seeming Fearful

Joe Sixpack (not his real name) used to frequent many shebeens where he would suck down many libations. When a fight broke out at one end of the bar he stayed on his stool and refused to make his way out the door to a safer place. Not for nothing but he did this because he was full of fear. What did he fear? He feared that the other patrons might think he was leaving because he was afraid.