I'd probably get mugged. 
I came VERY close to being mugged when I was in Paris. It was at night, in a "bad" part of the city, which is over by the Basilique du Sacre Coeur. The basilica is located on the top of the butte Montmartre - the highest point in the city. You can watch the sunset over Paris from the steps there and it is particularly badass. I highly recommend it to you Zeality (if you read this before you leave).
However, you have to walk through a rather bad part of Paris to get to the steps that wind up through an artsy district to the Basilica. There are many dark alleyways with Parisian whores that try to proposition you on the way, but there are a lot of shady characters that hang in the area a couple blocks away from the stairs. If you stick around crowds of people you'll be fine, but if you wander off you'll quickly get mugged.
I was walking in the area and suddenly found myself alone. I passed a suspicious looking dude hanging on the side of a building wearing a long coat and a hat to cover his face. I took a couple of turns and realized that he had been following me. He followed me for another block, and I decided to book it the fuck outta there and I ran until I found a crowd of people. I'm fairly certain that he was going to mug me, because it was pretty obvious that I was a foreigner. I think he was just waiting until I took a wrong turn down an alley like the stupid traveller he thought I was.
