"Can I use your computer real quick?"
Depending on who asks you this question over the next week, reactions may range from nothing to frantic flailing toward your machine to see if you can make it do something that looks like it is unusable, getting you out of having to relinquish it to a family member with a checkered techno-past. Since you've already done the basics to protect your Mac, like set a screensaver password, what else can you do to family-proof your machine?
Luckily, a small bit of prep work can make this question easy to answer. All you have to do is whip up a guest account on your system. Guest accounts are perfect because logging in as a guest user limits the amount of damage that can be inflicted on your system to virtually no
