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.
Complete Removal of Catalytic Converter From Vehicle. In order to extract the platinum from within a catalytic converter, the converter must be removed completely from the vehicle. Most catalytic converters simply bolt on to a vehicle's exhaust system with a series of threaded bolts.