I may have before when I cared about what they thought but I'm just there to get my Sub or pay for my groceries, if they say Hi I'll say Hi great, if I ask how they are and they don't reply I'll say to myself whatever, doesn't affect my day. Would I like it if they had some manners and said Good morning how are you today? that be great but some people they have a job in customer service but they have no customer service skills.
Some are direct and to the point, they want you in and out, they have a business to run and they aren't pleasant people, others are not happy with their job choice so they act like jerks but you can ruminate over them or remember the ones who did treat you well, cause there are good people and sometimes even they, because they are going through a hard time can act like jerks.
I m afraid of not being enough