Authors:

The punch connected, but (1) Colin forgot to close his fist, so he was slapping not hitting, and (2) instead of slapping TOC, he ended up slapping Hassan flush across the cheek, whereupon Hassan finally succeeded in falling down.

John Green (2008). “An Abundance of Katherines”, p.166, Penguin
The punch connected, but (1) Colin forgot to close his fist, so he was slapping not hitting, and (2) instead of slapping TOC, he ended up slapping Hassan flush across the cheek, whereupon Hassan finally succeeded in