"do not disturb" : open to interpretation?

when i travel and have the chance to sleep late or stay in and rest or work, i generally like to do so.

i always keep my door chained and bolted or whatever the option may be so that housekeeping doesn't come barging in on me during my moments of solitude.

to enforce my wish for privacy, i ALWAYS hang the "do not disturb" sign on my door handle.

in fact, i almost always leave it on the door handle when the room is vacant, simply because i do not want my possessions rearranged or exposed to theft or damage by strangers, etc.

"do not disturb"

seems to me to be a pretty straightforward phrase.

why is it then that the front desk or housekeeping always calls me on the telephone (probably at the point they want to go home) to ask if i want housekeeping service?

i can't help but classify a telephone call from the very people i posted the virtual "KEEP OUT" sign for as a "disturbance."

i'm pretty sure they know what the sign means and who the message is addressed to. they did in fact spend the money to have the sign printed and left a copy of it in my room for my convenient use.

so where's the confusion happening?

what i'm trying to say is: leave me the fuck alone.

theenks!

jay