Unlike [4], we used standardized data and did not precorrect the systematic effects from the data.

He walked in late, with the teacher glaring at him the whole time.

For I am a man of many sorrows. Yet there is no necessity for me to sit sobbing and sighing in someone else's house. Unremitting grief is tiresome and I'm afraid some of your maids or you yourself might lose patience with me and conclude it was the wine that had gone to my head and released this flood of tears.

Similarly, you cannot 'unstir' the sugar from a cup of coffee once it has been dissolved, and you never see a pile of ash in the fireplace 'unburn' to become a log of wood again.