Well, pot is relaxing and sedating for most people. Maybe Brown didn’t need to be real angry to push people around—it looked pretty routine for him when he was strong-arming the little guy at the store.
I’d think the Sweets just provide a convenient large volume for making a big fat joint. If it’s larger, it’s stronger if you keep on puffing on it... just like a double shot is stronger than a single shot.
Yep, everything he did that day was irrational and out-of-control. Might have been normal behavior made a little more pleasant by pot.