With Bagua, the main idea is to engage each attacker only once, neutralizing him/her/it immediately so that you do not have to deal with the aforementioned attacker again. It is circualar in it's approach yet very unpredictable.
It's focus is to deal with multiple attackers and dispose of each attacker as quickly (violently) as possible. Of course that is only a vague outline of baguazhang.

- Eric

Victory goes to he who makes the next-to-last mistake.