Not my favorite day...

I usually like Tuesdays. Ben and Luke have a playgroup in the afternoon, so I like to get out and run errands with only Zack in tow. But today Luke didn't want to go to the playgroup. Don't ask me why he would rather run errands with me, but I think I made the mistake of saying that Zack and I were going to hit the library. Anyway, we couldn't convince Luke to stay and play with the kids... so he joined us on our errand run. We went to the library for about an hour (thanks to Luke and his 20+ books he needed.) Then I wanted to run into Kohl's for a quick return. I told Luke as we were walking in that I needed to exchange one shirt and then we were headed out. I took about 10 steps into the store and found what I needed and said to Luke, "Okay.. let's go." As I stepped up to the cash register, with Zack in my arms, I couldn't see Luke anywhere. We had been in the store a total of 2 minutes, and I lost him already. Sometimes he likes to hide in the clothes racks, but that is usually only when he is playing with Ben. I retraced my 20 steps, looked under the racks for little legs, but no sign of Luke. I called out his name, probably loud enough for half of the store to hear, checked the dressing rooms and then started to panic. I checked outside (we were right by the entrance door) hoping not to see him getting carried off with a stranger, but there was no one in sight. So, Zack and I returned to the search. I couldn't believe he would run off somewhere because if you know Luke, he is mellow, pretty well-behaved and frankly slow. Ben calls him 'the tortoise' cause he's always behind. After 10 minutes (which felt more like 40,) I was really freaking out and started shaking. Just as I was about to alert the store to announce a lost boy, I look out the window towards my van and saw something move in the back. I thought I was losing it and figured I had imagined the slight movement, but I went outside anyway to check. My van was locked except for Luke's door. He must've manually unlocked his door after I powerlocked it.. sometimes he does that (because he's slow and didn't get out in time.) As I opened his door, he popped out from the back seat and says, "Boo!" I was almost hysterical. Seriously, I don't really yell at my kids, but Luke was in so much trouble. When I asked him why in the world he would go outside by himself and hide in the back of the car, he responded, "Well, you said it was time to go and I wanted to surprise you." I guess I should be grateful he's okay and that I still get to see his cute face everyday... but I am not that forgiving. Maybe tomorrow I will be over it. Isn't being a mom so exhausting? Ugh. I want to go back to Hawaii.