The door bell rang this morning. I walked over right away to answer the door, only to find the yellow slip on the door and the truck driving away! - not even 5 seconds after the bell was rang.
The yellow slip had already been pre-filled out in advance.
This has happened in the past as well. There has been times where I was at home all day only to find the "missed you" slip on the door at the end of the day - no attempt to ring the bell ever!
I am extremely unhappy with UPS, and will do everything I can not to use them ever again!