Guess I should tell you about Josie, our pug. She was 1 yr.old, now age 6. We had doggie door that went into garage and another from garage to fenced in back yard. I was at work and DH calls says he took Josie to vet....why? what's wrong... he said " when I pulled into garage josie ran out into garage and I hit her with truck.....broke her hip...had to take her to Columbus for surgery..but had to wait until Mon. he not in on week ends...I had to carry her out to go potty...oh her pain was terrific..So she had the surgery on Mon., stays a few days at vets. We bring her home and two days later she is screaming in pain again. Had to waite again until Mon. to take her back...well the pin slipped out and had to redo surgery...no charge 2nd time. Needless to say we changed the doggie door.