resonance in lecture theatre

hello? Don't you know that the seats in a lecture theatre are linked??
If the person to my left and the person to my right each shake at magnitude of 1x, I, yes I, will shake at magnitude of 2x. Don't you understand what is superposition?
And when the both of you shake at the same frequency, what will occur? RESONANCE! And the epicentre will be my seat! (trust me, I have seen one whole row of seats just gave way and collapsed.. not in NUS but.. somewhere)
The most stupid thing is, I, the one who did not shake leg, seem to be shaking more violently than the 2 of you who shake your blardy legs. People must be thinking, this freak suffering from seizure? Spasm? It is so unfair, just like why must a non-smoker get lung cancer when he doesn't derserve it at all. (well maybe he deserves it, who ask him to hang around with smokers)

I know it is Sunday, but...