This can be done by setting all other user accounts to Guest Account and then using third party software to restrict the sites and programs that Guest accounts have access to. For example, both FreshUI and TweakUI limit access to the Internet and other software on all Guest accounts. User Restrictions.
The catalytic converter is made with trace amounts of platinum, palladium and rhodium, which speed chemical reactions and help clean emissions at very high temperatures. Selling stolen converters to scrap yards or recyclers, a thief can net a couple of hundred dollars apiece.
Fix Catalytic Converter. Catalytic converters are a sort of devil's bargain for many car owners. They do a lot to clean the emissions of the vehicle when it's operating, but they are tricky, sealed, and heavily regulated units that, when they go bad, affect both the performance of the car and its ability to be legally licensed for road use.