Sugar

Martin sat at the kitchen table with a cup of coffee. When he tried to drink it he found the coffee too bitter. After searching in the cupboard for sugar and not finding any, he shouted for Cassie.

She didn't come, and then he remembered.

Slowly he walked into the hallway to fetch his coat from the rack. Cassie's black winter coat still hung from the peg. Ignoring it, Martin put on his own coat and zipped it up. Returning through the kitchen to fetch his keys, he picked the cup of milky coffee up and poured it down the sink.

An experiment in style and form. Google "iceberg theory".