"I'm tard"

As I drove to the water park today, my 2 year old son told me, "Mommy, I'm tard." (tired) That should have been my first clue to turn right back around and go home, but despite the warning signals going off in my head, I continued on. The time at the park really wasn't too bad except that he was more cranky and demanding than usual. Riding the lazy river with him was anything but lazy. He was trying to jump off of the raft the entire time and mom and I ended up each holding onto one of his arms and letting him "float" down it that way. I shoveled pizza into him the whole way home, so he was pretty quiet then. HOWEVER, now that we have made it home, we have crossed the line of tired and have now entered into hysteria. He is actually in his bed at this very moment, screaming at the top of his lungs and has been for about 5 minutes. I know he is so tired he can't even walk straight, yet he refuses to lay down and give into it. I've offered to rock him, but he declines. I don't know what else to do but let him scream until complete exhaustion takes over and he wilts down onto the bed. It's so hard to listen to him scream my name though. You'd think by now I'd know better than to take him somewhere at the exact time I usually lay him down for a nap. Like, DUH!!! Anyway, I guess I've let my emotion get the best of me...I can't take it anymore..I am going back in there. Maybe he'll let me rock him now...Wish me luck!