"Sad Sack"

My almost daily trek to Starbucks invited the report that I had hurt a barrista's feelings. My crime was asigning him the classification of "sad sack". When you meet him..you will see that there is no wiggle room to this knickname.. his posture and facial expressions define "sad sack" Feeling an imediate need to undo my emotional damage..I staked out the dumpster and expressed contrition..he shrugged his shoulders ..as only a "sad sack" would