The most recent meltdown

Frustrated! That's what I have been all day!
Brycen slept through the night last night so you think he would wake up and go to school in a great mood...um, yeah, sure...not this morning of course! When I walked him out to the living room to get his shoes, the crying, throwing, and hitting started...and we still have no reason why it really started. The shoes were thrown, Daddy pulled him onto his lap and the hitting started while I struggled to get his shoes on. Then it seemed like he calmed down for enough time to put his jacket on...but then the backpack went swinging and flying to the floor and he refused to pick it back up. He walked out to the car fine but as soon as we pulled up at the school, he began kicking the back of the front seat and screaming. I talked him down and we walked into school thinking it was all over...but of course he had more in store for me (once again not having a clue what is going on or what triggered this). He stopped in the middle of the hallway and looked around like he was going to make a run for it in the middle of all the arriving students and parents. I was able to get him back on track to take off his jacket and hang it up, but then he took off running into the classroom. I followed and asked him to do his "work" at the table, but he screamed and ran again from me. It seemed like he was going to the table to do the "work" so I slowed down...big mistake, Mommy! The lunchcards and namecards went flying all over the floor with one big sweep of his arm...sigh, sigh, sigh. While his teacher looks on, I lean over and do hand-over-hand picking up the cards with him, thinking the entire time that "isn't this what the teachers get paid for"! Sometimes I wish I was like all those other parents that just walk their kid in and leave, but since I'm a parent that actually likes to see my child succeed and require him to interact back with me by having him say "goodbye" to me, I guess the teacher doesn't jump in to help at those times. It seems she has plenty of other "advice" about him and what to do, but of course the few times that I just want to walk out of the room and have a break from the screaming, hitting, throwing is the time she sits at her desk and "watches."
So, the moral of the story is...we can NEVER pinpoint when a meltdown will happen. We can prevent, we even had him in his regular routine this morning, he slept through the night...everything we try so hard to do to help him succeed and achieve on a daily basis...and then something like this happens and you wonder "where did I go wrong this morning." Oh, yeah, I guess I could have been more patient at the start...but I'd like any parent that deals with this regularly, with no warning, with a child that can't communicate, a child that most symptoms cannot be lessened with medication...those parents are free to jump in anytime and tell me that being patient 24/7 is easy! Otherwise, for those others that read this...this is our life! This is why we don't go many places, this is why we don't attend many family functions, this is why we have to bend over backwards and plan and prevent and prepare for any possible thing...and once again, this is our life (and this was a very, very small meltdown, so you can imagine the next step up, and the next, and I'm guessing you probably can't even imagine the worst unless you've been there and done that with a child like Brycen)!