The mystery culprit

The other day I put Jack down for a nap, and shortly thereafter I heard him playing in his room instead of quietly sleeping. Eventually he fell asleep, and I always like to peek in on him. I opened his door and spot my sweet darling's little face...glistening at me from across the room. Yes, glistening. A shiny sheen emanated from his cheeks and forehead. At first I thought maybe he was really sweaty. I wish. Noticing the curtains are askew, I investigate the window area, only to see the same shiny, greasy substance coating the window. There sitting on the window sill is a tub of vaseline. I swear that vaseline was on top of his very tall dresser, pushed all the way back; but leave it to Jack to figure out a way to get his little paws on it. Needless to say, the vaseline now resides in a different room.

In case you were wondering, the average time for a face full of vaseline to be completely non-greasy again= 3 days.