As written, it can do it. Whether or not that's what it would do depends on circumstances. In the game I run, it's unlikely to happen - if only because the players are unlikely to be out in the open if they run across one.
If someone gets too abusive with summonings, you can always house rule it to a weight/victim limit.
If someone gets too abusive with summonings, you can always house rule it to a weight/victim limit.