We had problems with this as well.
I remember one very cold February day in southern Cincinnati (yes, really, we lived there!).
I gave the warnings so he would get ready for school (because Heaven forbid I would see him changing clothes!).
At 5 minutes til I told him change now, your warning period is over. We will be out the door in 5 minutes, I do not care if you are dressed. Not dressed. Or standing in your underwear. What you have on is what you will go to school in.
He dressed and we left. He had already eaten, clothes were laid out the night before, all was in readiness.
Guess what my little darling did???
Went to the office and told them he hadn't had breakfast. And that I refused to give him lunch or lunch money. He had a LUNCH AND money on his account. But they called me.
I got up to school, having already gotten home and had to change thank you's diaper and Jessie's clothes.
I find the principal wiaitng just inside the front door for me.
My darling son told her and several other parents that I made him stand outside in his underwear all night long!!!!! We had snow and ice on the ground!!!!!
The principal said that while she knew it was untrue, another parent who did not like me called CPS.
I refused to take son home until CPS arrived and could document my smiling son in his gleeful state.
Someone LISTENED TO HIM!!!
He was not smiling when CPS told me to take him home and paddle his bottom for lieing!! He had NO frost-bite, clothes that fit him (that clearly were not given to him at school). He had to show them his feet to prove that he had no frostbite (HATED taking shoes on and off). Heck, HIS NAME was even in his clothes.
And they found the lunch in his backpack AND found he had money on his account. School teachers and principal ALL verified that I did not come and dress him. That in fact I refused to take him away until this was investigated.
When asked why he lied?? He wasn't done with his book and wanted to teach ME not to rush HIM when he was BUSY!!!!!
It was after being told this that they recommended I spank him. Worse, I made him eat what I cooked for dinner!! And then made him call his grandmother (my mom) and tell her what he had done!!!!
Man o man this child will never live it down.
When he accuses my parents of being too strict they say, Hey, we could have made you stand outside all night in February in your underwear!!
My youngest is worse. He is ready at an hour before anything. And nags you until you are ready too!!!!