Those Nigerian's are going to see you coming from a long way off. Best you do a bit more research about that place before you go there. Posting here is not going to help much. Get the proper facts yourself. Basically though all those nasty facts that you will find on the UK embassy website {and lots of other countries websites} are pretty much all true. In fact it is often worse. I have operated in Africa all of my career and Nigeria is definitely one of the worst places for all sorts of reasons. The main problem with Nigeria though is the Nigerians them selves. Honesty is not big there and as a naive foreigner you will most likely be taken for a very long ride. Good luck and enjoy!