re cheque again from nigeria?

sorry bit misleading cheque came from ireland bank sent by chap in nigeria who wants me to cash it and send him funds in smaller amount of 2500 at a time so i took it to the bank and asked the question they didnt seem concerened about it and said it will be cleared funds by wednesday next week and that it is a bankers draft so now my question is why would a stranger who ive only spoken to trust me with 7000 of his money i will sent him it all if genuine no problem but still thinking scam ? whats your views