hahaha. Unplug the speakers and his keyboard while he is gone. See how long it takes him to figure out whats happened

Or just rearrange his keyboard keys... might take him a while to notice if he touch types

My fav is to add autocorrect enteries to outlook that misspell commonly typed words. Or even is name.:p
Sticky tape over the phone mouth piece is good also., as is sticky tape over the phone jack.





