Sorry, but another brake pedal question

I paid a mechanic to replace my brakes. He did not tweek them just gave the car back to me.
So far I have had to fix allot of things he did. Thanks to all of your help.

One more question: I am able to pull my brake pedal up almost 5 inches from where it sits in the normal position. It stops when the master cylinder rod stops. I did it by accident by catching my foot under it.
Should there be some kind of a stop arm to keep from pulling the brake pedal up that far, or is that the nature of this brake system?
Thank you in advance for any ideas.
Steve