Yes, but that's not the only scenario that produces that result. If Zimmerman has the back of the slide against his chest, he can stop it. I don't know if it would, for sure, bruise him - but I think it would! Still, that would represent a close-quarters discharge, a last resort sort of position to be firing from. If you can, you extend your arm, and at least get the back end of the gun away from your own body before firing.
OUCH! So do I.