Reverse Hijacking?

Arma II, I joined a server off hive to try the stuffspawner, and immedately two guys barrel down the road one in a bus and the other on a bike.. I didnt spawn anything yet and am unarmed. Guy gets out of bus, holds me at gunpoint and says to take the bus over direct chat. then gets on his friends bike and takes off, leaving me with a bus. reverse hijacking? HGuys... this is where help is involved. I need you to tell me, WHAT just happened?

Somebody gave you a bus. . . -__-

What did they gain out of it unless they were trying to grief one of their friends?