Seems to be a very common technique now-a-days.
People are randomly friending you (at least for me) and then after a while they are asking to try on fuses.
Happened to me a few months ago, however I reinstalled my client, so I have no proof that I can us to accuse people.
Yesterday someone tried to scam me over the phone pretending to be my telephone provider. They couldn't tell me the first name of the account holder, even though I asked them 3 times. So many people who do such horrid things.