Machine crash

 I am a little upset right now.... (all the nasty words my neighbors had to listen to ... ).
Accidently I pressed the "play" button on axis    

Question: How can I get rid of this dangerous default program that the system is loading? 
                I would probably better to remove this "play" button altogether...... 
                Part is ruined for sure, do not know what else is damaged. Probably should just go home now. *sobbing*  

I was too upset, did not touch the machne since lucky me the workpiece spindle and y motor are both not very strong, so no damage on tool or machine.