Among field troops in Vietnam it became common knowledge that ingestion of a small amount of C-4 would produce a "high" similar to that of ethanol. Others would ingest C-4, commonly obtained from a Claymore mine, to induce temporary illness in the hope of being sent on sick leave.
Oh, I'm aware. Much like intentionally losing part of your leg to trenchfoot in a desperate attempt to get out of being mowed down by a barrage of bullets or burned alive by mustard gas or chloramine.