first a lady called... then the phone rang about 4 more times...then they called again ...it was a man the second time..i told him to take us off the list too..he quikly commented something about a reference too
the number belongs to http://www.kroll.com/ - among other things they provide background screening services for high powered companies. I got a call from them to check out a reference for someone I knew who had applied for employment at a bank.
** I wouldn't ignore it unless your friend didnt tell you that you were being used as a reference!