MEME REFERENCE

Walter White Screaming At Hank

Use when someone desperately shouts a warning that may already be too late.

What it expresses: An informed observer sees imminent danger while the target continues toward it unknowingly.
Example: I watched my brother click “reply all” and yelled his name from across the room.
When not to use it: Avoid when the danger is distant, the warning is calm, or the target already understands the risk.