I really like Second Life. It protects you from the harsh realities of the real world.
Putting aside that you can fly and magically teleport yourself wherever you want to be in a matter of seconds, there is the factor that you can wander mountains in your lingerie. I mean you can do that in real life too but the lace tends to get caught in the rocks, and your toes tend to get stubbed and bloody which takes away from the whole effortless fashionista kind of thing.
And you can wear your underwear to the store, or to the concert, or to the wedding, or the sporting event or anywhere you want to really. You can put a pig on your head, you can buy ginormous boobs and hide a bicycle riding monkey in the cleavage and wander around butt naked.
Second Life is like the giant Walmart in the Cloud. No matter what you wear, and where you wander, you are pretty much guaranteed that someone there is going to look or act stupider than you.
If you want to guarantee that 100%, just make sure some of your alts are at the same place.