Offered the chance to go abroad

I work in-house at a major alcohol company. We have offices in Brazil, London, Australia, Toronto, Shanghai…St. Louis, etc. My ACD approached my on Friday and said they’re ironing out the details of an “externship” in which you’d get to go work in another office for 6 months. I was obviously intrigued. She said “once you open the door, it’s open and it’d be difficult to say no.” The problem is, you don’t get to choose the location. The idea of going to Brazil spooks me a bit. Anyone ever do something similar? Was it worth the experience to see how other countries (or areas) work? My main concern is that we can’t choose the location and…what happens when I get back? I love my team right now and I’d hate to be replaced or come back and move to another team. – by hq overview PP8900 – –