[1.3.3117] Vanilla. Tantrum caused dead from targeting explosives.

[Kilvas]

Not a bug, but perhaps disproportionate. Colonist died from a Tantrum targeting high explosive shells to be destroyed. Pawns don't tend to have any breaks that lead to direct self harm, targeting high explosive (or fire, anti ect) is suicidal and not in line with other Major Breaks.

[Pheanox]

Thanks for the bug report.  This is simply one of the quirks of the game and is intended as part of the procedural storytelling system of the game.  It can be frustrating, but it also makes an interesting story.