Being invisible, being able to go anywhere and do anything without being detected sounds like a perfect excuse for doing bad things without consequences, so everything I can think about if I was invisible is evil.
If I was invisible I would do one thing: Steal . Steal money and objects.
I'd probably go to the rich people's houses and pick all the money I found, their jewels, expensive decorative stuff and everything I liked. I'd also go to the stores and steal beautiful clothes, more jewels, game consoles, etc.
I wouldn't go to the geek stores because I prefer to save money and buy my geek stuff honorably, I love an admire that community so I couldn't do that to them, I'd feel bad and not worthy of having those things, because I didn't pay for them when they mean a lot to me. But I would't feel bad for stealing anything else because they doesn't mean anything to me, they just would help me have a more comfortable life.
@missy @rambo