Basic Trope: A character is going to leave someone in trouble, but than stops and helps them anyway.
Straight: Alice sees Bob who is badly hurt. She goes away since that is not her problem, but than she stops and realizes she can't just leave. So she goes back to help him.
Exaggerated: Alice sees Bob slowly backing away from an earthworm, Alice leaves him to it. After she finally gets in the attack fighter she was trying to get to, she flys over Bob, still backing away from the earthworm, and shoots it from the sky.
Downplayed: Bob is struggling with several sacks of graceries. Alice is about to just go through the door herself, but has second thoughts and holds it open for Bob.
Justified: Alice's parents were killed in a similar situation, but what she was doing seemed important so she though about passing though it.
Inverted: Alice sees her old enemy Bob, who is badly hurt, and immediately rushes to help him. But she realize she can't go through this and leaves.
Subverted: Alice sees Bob who is badly hurt. She goes away since that is not her problem, but than she stops... thinks for a moment and continues her way.
Double Subverted: ...After she makes a few steps, she stops again, takes a long breath and returns to Bob.
Parodied: Bob's shoelace is united. Alice starts deactivating the bomb, and then helps Bob and goes back to deactivating.
Zig Zagged: ???
Averted: There is no trouble on Alice's way to her objective.
Enforced: "Alice needs some more characterization. Let's give her something to show her helpful side."
Lampshaded: "Isn't there a bomb somewhere? Why are you helping me?"
Defied: Alice sees Bob with his leg in a bear trap on her way to disarm a bomb. She shoots him in the head and goes on.
Deconstructed: Alice stops to help Bob, but because of wasted time both her objective and Bob have been failed, causing either suicidal depression or everybody dies.
Reconstructed: Alice helps Bob, and he thanks her by letting her know of a way she can cut through the nearby forest but still end up almost exactly where she needs to go, despite the fact that it is too late for him. Alice manages to deactivate the bomb with time to spare thanks to the shortcut, but she always remembers Bob for the invaluable help he gave.