[AvOrdVet]

Quite a few years ago (late eighties) a SEAL was tossing a grenade, the fuse had been changed out for instantaneous detonation, when he threw the the grenade and the spoon flew, it detonated about a two feet in front of him as he was going to the ground, causing very serious injuries but not killing him.

After that, all armed services had to go through their grenade stocks and confirm the proper fuses were installed.

[AvOrdVet]

Another great reason for not taking chances with these items, many years ago in an Army Claymore Training class, the instructor was going through how to identify a live claymore from the inert versions...

When a student held up his hand and pointed to the LIVE claymore sitting in front of him that had been mis-painted as an Inert Training Aid... again, all military units using the devices had to go through their stocks to properly identify the live/inert units.

[DCBryan1]

We had two (2) instances in Arkansas in the late eighties also. A mechanic's wife jobs on our local NG base, Camp Robinson. She brings home an old, rusty pineapple grenade that was off of a trail. Husband takes it to work to show the guys, and he holds it to his ear and shakes it to see if its got rainwater in it. It explodes instantly killing him, and injuring 3-4 mechanics at Russell? chevrolet in North Little Rock.

Another instance was a NG soldier that should have known better, took home a dud 40mm grenade. Apparently, while at work, the cat jumped up on the book case that had the "trophy" and knocked off the grenade, enough for a final arming spin, and BOOM, blew his 1,500 sq foot house all to hell. THE CAT SURVIVED!

[Rebelbase]

“Quite a few years ago (late eighties) a SEAL was tossing a grenade, the fuse had been changed out for instantaneous detonation”

Why would an instantaneous detonation fuse be made to fit a hand grenade?