5yo ds has started (sometimes) saying he will kill himself when he doesn't get his way. Example this morning he asked could he play his little game on my phone and I said no not before school... he responded "fine I'll just kill myself". He has started saying this in the past couple of weeks in these types of moments. Very calmly, not in a tantrum.
My response has pretty much been to stop what I am doing, sit down at his level, and tell him never to say such an awful thing, it's very serious and very wrong. I asked where he heard such a thing and he said he made it up himself.
This morning, I thought maybe he keeps saying it because I take it so seriously. A way of getting attention.
No issues at home- very happy and loved. He gets into a mood sometimes though when he doesn't get what he asked for, example this morning, and says this...
How should I respond? Should I mention it to teacher in school if there is something going on in there? He doesn't understand the gravity of it... and barely understands death.