An issue with lobsters. If the lobster has been told to attack an enemy unit - perhaps because you were just moving it around on the map and happened to click on one - then the lobster will keep that enemy unit as its target and
continually launch to it whenever that enemy unit is in range, even if you click away from the enemy unit to move the lobster in a different direction. The last game I played it resulted in throwing a low-health Grizzly into the enemy shieldball, instead of launching it away from the shieldball where I told it. Lobsters should launch when you have just pressed d, and at no other time. I see there's already an option to make the lobster not respond to attack orders. This option should be on by default.
(edit: at first I thought that lobsters automatically repeated their d-orders, because that's the behavior I observed when throwing units into an enemy base. But it seems that's just the result of an accidental attack order too.)