Some better methods for you, in case you ever wanted to try them in Minecraft.
But if you still want to just yeet it:
Both part of the documented and approved shutdown procedure, Boston Dynamics instructs operators to (after they have used the remote control to power off motors) "Engage the lockout button" and "Power off the robot by pressing and holding the blue button at Spot’s rear for two seconds."
Some better methods for you, in case you ever wanted to try them in Minecraft.
But if you still want to just yeet it: