Prank laptop domination!!!!

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hello.
i have idea project, might cool, if possible. small handheld arduino device, 1 switch. when switch on, normal. when off...

my friend has macbook pro laptop. play small prank on him. when switch on arduino device off, laptop forced off. if friend tries power laptop, not power on. arduino wirelessly keeping laptop off. then, when put switch of arduino in 'on' position, laptop can powered normally. have wireless.

and wouldn't have laptop on , off. maybe laptop display "locked" message on screen, , message go away when arduino switch in on position.

bluetooth? wifi? ideas? 1 rule: can add files (not apps) on laptop, no digging around inside hardware of laptop. also, no major stuff installed on laptop, please...

any ideas cool!  :)

i don't know how interact power switch or of hardware wirelessly.  don't think possible without adding more hardware computer.

adding lock screen on other hand might easier if can write program on mac run automatically @ startup , not move forward or allow else happen until receives sort of signal arduino. 


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