‘I found out what your “drug-stores’ were.” He turned to us and spoke rapidly. ‘He and this Wolfsheim bought up a lot of side-street drug-stores here and in Chicago and sold grain alcohol over the counter. That’s one of his little stunts. I picked him for a bootlegger the first time I saw him, and I wasn’t far wrong.’
‘What about it?’ said Gatsby politely. ‘I guess your friend Walter Chase wasn’t too proud to come in on it.’
– F. Scott Fitzgerald
The Great Gatsby, Chapter 7. When Gatsby tells Tom that Daisy wants to end their marriage and run away with him, Tom goes on the attack. Gatsby is caught out lying, but he doesn’t care. As he sees it, everyone is involved in some kind of deception, including Tom’s pals.