Mousetrap yanking

A friend's response to McDonald's mousetraps, kindly e-mailed to me:

Didn’t think much of the mouse traps but, probably, 25 years ago, would have really enjoyed the pot you smoked in order to dream up such nonsense.

But, I suppose, I shouldn’t be so prematurely critical. Maybe if you could intelligently CREATE one of those mechanical devices and let me see how it actually works I might be impressed.

In the mean time, inhale some more mate.