One's new hat!

No matter how many seconds One is alone his new thing this week is hats.. not just any hat.. special hats..
He will make his way into the bathroom and remove the backing off a panty liner and place it carefully on his head.. yes.. a panty liner..
WHAT in the heck!?
2 different times this week I caught him with them on... and I chased him around to get a picture like a nice mom..I kept finding the backing to them all around the house.. I was beginning to wonder if we had mice who were looking for bedding!!! Once while I ran to get my phone to take the picture he managed to go through my purse and get in my wallet and throw various shoes around the house... ahhh the joys of childhood...