yeah this is screwy.
I have one brick set up so it throws a bot to touch a bicycle spawn of a bot.
The bicycle spawn's event is onbottouch -> self -> objmounttoself (0).
You might think that the tank turret mounts to the bicycle at mount 0?
No.
The bicycle mounts to me no matter where I am.
EDIT: onbottouch doesn't work. When I do onbottouch -> self -> selfmounttoobj (0) it mounts me to the bicycle no matter where I am. The tank turret somehow makes me mount to the bicycle. :/
And when I have onbotactivated -> self -> selfmounttoobj (0), when I click the bot I mount to the bot. It doesn't mount to me.
objmounttoself does the same thing as ^.