Holy shit, 300mg caffeine sounds insane to me (a German). Over here Energy Drinks are not allowed to contain more than 32mg caffeine/100ml. So a big can (500ml) would have 160ml. Those are already a bit too much for me, I can only imagine how 300mg would feel.
If I want to be able to access my trunk easily I will have to go forwards.
Otherwise I always go backwards.