After awhile things that are very culturally different than you own, start to become normal to you. The dogs that live on the roof, the small moto-taxis, the different hand gestures ("come here" is a slow flap of one arm), etc. However, one thing I'll never adjust to is Lima traffic. It surprises everyone, that's why I was glad when I got passed this link of a professional trying to maneuver the mean streets of Lima.
If you have time, and your work doesn't block youtube, enjoy:
Don't Drive Here: Lima (Discovery TV show)