Does this happen to you guys too? You go to a stop like a doctor's office, or any business, and the people there pretend like they don't see/hear you. I walk in and say "Hi UPS."..............Nothing............"Hi UPS." Again, nothing.....I don't understand what goes on in doctor's offices especially, but nobody wants to sign, or even cop to the fact that I'm standing there. I sheet them closed when They won't sign. Then I always get a message from the center asking me to go back. So I reply "I will go back if they will stop pretending like I'm invisible."