| 1 | The dog is a protection against burglars. | |
| 2 | The doors were padlocked to prevent theft. | |
| 3 | Install an anti-theft device for cheap auto insurance. | |
| 4 | Safe-deposit boxes are kept in vaults that are usually burglar-proof and fireproof. | |
| 5 | Car manufacturers in recent years have added many theft deterrents that older models don't have. |