What exactly do you classify as cheating?
Willfully participating or conspiring to participate in an act of intimacy with the foreknowledge that your partner would reasonably consider that act to be a breach of the mutually understood and agreed upon terms of the relationship.
On Swanston Street
An old man pulls out a cigarette while he watches people walk by.
A pre-pubescent girl asks him for one and he obliges.
Her friend sees this and asks for one too.
"Hell no", the man says to his face and shoos him off.
The boy joins the girl, who’s lighting the cigarette with a Bic from her pocket.
“Why did *you* get one?”
"Because I’m pretty."
The man lights up too, and people walk by.