I want to break my rm advice?

i want to break my arm i have already made a plan to break it and have an excuse i will do it before goin to bed and fall out of bed in the middle of the nite and say i broke it dat way but i dunno wen to do it coz i have an inportant meeting tomorrow and i think i may miss it but sud tomoz nite be fine but i relli wanna do it tonite any advivce