There's a very good possibility that the person applying the sticker was being exactly that.....careful.
Looks photoshopped. What box says "This SLIDE Up"? Doesn't make any sense unless it does indeed contain an Anal Intruder 4000..
Ive had the same UPS guy for 25 years. His name is duck. Absolutely hates being called Richard !! Loves his job and I'm always joking around with him . Ive been trying for a couple years to get the boy to meet him at the door and say something like " Your late ,,,, duck!!!!!" Or "You were awful rough on that package the other day ,,,,,duck !" but the boy don't have enough sack to do it ,,,,, in due time .