This sucks but I've had 100% of my hotel stays involve a service person knocking.. me saying "Come back later" then they knock and I yell "OCCUPIED" then they walk in anyways. Thankfully my blanket to crotch arm speed is like 11 million percent. https://twitter.com/lpolgreen/status/932020855277871107 …
I have had almost everyone from Hyatt to Hilton bunker rush me even WITH the DND sign up and checkout still hours if not days away...