Handphone versus Annual Leave

When you are on leave, do you still switch off your handphone ? If no, why ? Are the following the possible reasons ?

1. No other handphone or number can be used
2. Afraid customers cannot reach you...so lose business
3. Boss told you not to switch off handphone and must be 24-hours on call (but he himself switch off)
4. Cannot let go of responsibility...
5. A corporate culture that has been embedded in your mind since day one..
6. In case your girlfriend cannot reach you...

Is it wrong to switch off handphone on your leave days ? I do not think is wrong but I myself have been suffering this since the day one I have handphone back in April 1997 (Nokia 232)...

Then, how to manage expectation especially from customer and big boss... TURN into silent mode...:) then screen your calls and call back...or practice..."The number that you have dialed is out of reach at this moment, please do not call back as he will not answer your calls anymore until he is back on work" ....hehehe..try it...