have a heart

Idioms  

1. Be merciful, show pity; also, be reasonable. For example, Have a heart—I can't pay you back until next month, or Have a heart and stop your arguing now. This expression is often put as an imperative, as in the examples. [c. 1900] Also see harden one's heart.

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Example Sentences

In 100 or so talks I’ve given on happiness, I said, “While I have good reason to assume I will be healthy tomorrow, I do not expect to be. I may have a heart attack or discover a cancerous lump, or I may have a stroke, or some other life-threatening event or illness. As a result, I walk around every day with gratitude for my continued health.”

From The Wall Street Journal

Just like having high cholesterol doesn’t mean you will have a heart attack, having biomarkers like amyloid doesn’t mean you’re going to develop Alzheimer’s disease, he says.

From The Wall Street Journal

He does have a “Heart of Gold,” after all.

From Los Angeles Times

"I didn't know they were called panic attacks. I just thought I was perhaps going mad," she explains and remembers thinking: "Am I going to faint? Am I going to have a heart attack? Am I going to make a complete fool of myself in front of all of these people?"

From BBC

In it, she said the medical director of Euracare had told Adichie her son "had received too much sedation", which subsequently caused him to have a heart attack.

From BBC