are you within view of this coworker when he discovers the joyous events bestowed upon him?
scotch tape over the phone is the one I liked, shipping tape is easier to do it with though and more effective.
Sometimes I liked to bring in old stuff for co-workers, you know - cause I'm a nice guy. They cant refuse it, if they do you just leave it in there and say "well think about it, if you don't want it just let me know or....throw it away if its really that bad" and due to human nature and you're overwhelming kindness, most people just hang onto the **** forever. Some were wise to the plan, and they found it even funnier to help me purvey it onto other employees
. Example is someone would ask someone else if they knew a guy with a rototiller..they'd send them to me,"I think he does.." then I'd say I didn't have/know anyone, but I do have some old gardening tools they could use or have if they needed them. They'd kindly refuse but due to my lack of understanding, some rusty old junk would be in their office the next am. Typically you could leave it there for 2 days before they'd come visit and discuss/reclarify the situation. At which time you state that you are more then willing to help them out, they can keep it as long as they want. Be friendly, it helps. Typically by day 4 they are carrying some piece of it around and trying to bring it back to you (not all of it, as that would be rude) but some component, saying they really don't need it. I'd just tell them that I was going here/doing this tonight but I'd bring in a bag for the stuff tomorrow or a tarp for my trunk and take it home then. Then I'd forget, but then the miracle - it sits in there office for so long they decide they may have a use for it, and low and behold you might get some back - but I tell you it works.
My record is 3.6 years with a rack full of MCSE (NT 4.0) manuals, and none of the systems were even NT.
My shortest record was 2 days, and that was a half-eaten sandwich I left in an employees cooler that I left for him there because I thought it was a refrigerator (silly me
), and because he worked late nights. He did give it back to me though at least instead of just chucking it - so I get some points for that.