How illegal would it be to push down someone and take their trumpet?

how else could i get a trumpet for uhh 1+2..2+6...for free.?

Sorry i didnt answer anythign there heres mine its a soda bottle cap cut up and burnt and the socket (real nice cuz all diff sizes and at Auto Zone) and superglue sealing it with a normal sink screen ( unscrew where water comes froma nd usually about 7 or 8 screens.)