Use "on the fritz" in a sentence

1. Your " good reason " barometer is on the fritz.

2. 14 The vending machine has been being on the fritz.

3. Harold assumed his watch was simply on the fritz and never even considered that it might be trying to tell him something.

4. With immense powers often on the fritz, Cable sought to better the future of mankind, for he had seen the result of not doing so first-hand