Just wanted to get some advice here. I posted my iPhone on CL to trade for an M8. I got a response from someone who says they work at Verizon and had upgrades available on their business account. He said he would get it and then we could do a trade. He wants to meet at Target and swap there and says I could just call over the phone to activate because he isn't going to activate it. If I did this, could anything go wrong? Like, could he blacklist the IMEI or anything like that? I really want the M8 but I'm skeptical about it all.