The non-greeting
I was out doing some shopping the other day and went to our local outlet mall looking for a pair of athletic pants. They are nothing more than fancy, dressy sweat pants but they are comfortable and as a matter of fact I was wearing a pair when I went into their makers store.
I was greeted warmly by the greeter/security at the front of the store as I continued into the store looking for the pants. There was an employee wandering in my general direction. As he passed, without making eye contact or slowing down, he asked if I was doing okay. Without hearing my response, he continued on his way.
All I wanted to know was if they had the pants I was wearing in stock and where they might be located. A transactional customer that was looking to make a quick purchase. Easy money. But this employee did not have the inclination to greet me in a proper fashion. In fact, I bet that if you had asked him, he would have said that he had properly greeted me and that I did not need any help. I would like to think that he had been trained to greet customers as part of his on-boarding. But his greeting did not count. Other than giving him the peace of mind that he had greeted me, it was completely ineffective.
( I soon found what I was looking for and quickly made my purchase.)